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Old Calculator Museum Change History
Last Updated 12/30/2024
This page documents the change history of the Old Calculator Museum. Changes are listed in order newest to oldest. Links are included where appropriate.
12/30/2024
Updates to the
News Archive
in the
Articles & Documentation section
12/6/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
11/16/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
Added the Tektronix Type 154 RS-232 Serial Interface for the Tektronix 31 calculator
to the museum inventory
11/4/2024
Various updates to the Hewlett Packard 9100B exhibit.
10/21/2024
Updates to the Tektronix Model 31 exhibit to correct
typos and some clumsy wording. Links to the manual for the calculator were added, as well as additional added information
and links.
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
10/14/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
9/11/2024
Remembering the nearly 3,000 victims of the 9/11 attacks on the US carried out by by terrorists on this day in 2001
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
7/13/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
7/1/2024
Added Advertisement for the
Sharp Compet 30
Model CS-30B to the
Advertising & Documentation Archive
page.
Added an early
Advertisement
for the
Wang 700
electronic calculator to the
Advertising & Documentation Archive page.
6/22/2024
Added new Advertisement for the
Wang 100-Series calculators to the
Advertising & Documentation Archive page.
6/19/2024
Updates to the
News Archive
in the Articles & Documentation section.
6/16/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
6/15/2024
Major updates to the Tektronix Model 31 exhibit.
6/13/2024
Updates to the Sharp EL-8 exhibit.
6/7/2024
Updates to the SCM Marchant I exhibit.
6/5/2024
Added the Hugle-11
calculator to the museum's Wanted
section.
Updates to the Commodore US*8 (Version I) exhibit.
5/28/2024
Significant updates to the Sharp Compet 229 exhibit, including
revised text, improved quality photos, and addition of specifications page.
5/22/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
5/14/2024
Numerous updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
5/3/2024
Updates to the Friden 1115 exhibit.
5/2/2024
Various updates to the Hewlett Packard 9830A exhibit.
4/26/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
4/14/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
Update to the
News Archive to include an
article introducing Sony's
entry into the electronic calculator marketplace.
Added new Advertisement for the
Sharp Compet 22(CS-22C) to the
Advertising & Documentation Archive page.
Updates to the Sony ICC-500W
and Sony ICC-400W exhibits.
3/21/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
3/10/2024
Extensive updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
3/8/2024
Numerous updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
3/6/2024
Various updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
3/2/2024
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
2/28/2024
Updates to the Canon 130S exhibit to
include a block diagram of the calculator's logic along with other updates.
2/25/2024
HAPPY NEW YEAR to all!
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
2/20/2024
Update to the
News Archive
in the Articles & Documentation section.
2/9/2024
Minor update to the Friden EC-1113 exhibit to
include a block diagram of the calculator's logic
2/7/2024
Minor updates to the Friden EC-1113 exhibit
1/25/2024
Added the MITS 908DM
calculator to the museum's Wanted
section.
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
1/2/2024
HAPPY NEW YEAR to all!
Substantial updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
12/17/2023
Update to the
News Archive
in the Articles & Documentation section.
12/16/2023
Updates to the
News Archive
in the Articles & Documentation section.
11/30/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
11/27/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
11/24/2023
Significant updates to the
Timeline of Calculator History
in the Articles & Documentation section
11/13/2023
Added new Product Brief
for the Digital Devices 613E-1015 Magnetostrictive Delay Line to the
Advertising & Documentation Archive page.
11/3/2023
Updates to the exhibits for the
SCM Cogito 414 and
Wang 144T calculators
10/10/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
10/9/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
10/8/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
Minor updates to the Commodore C112 exhibit
9/23/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
8/16/2023
Added new Product Brief
for the Commodore 1161 to the
Advertising & Documentation Archive page.
Updates to the Timeline of Calculator History
document in the Articles & Documentation section
8/15/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
8/10/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
8/9/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
Added
Article
to the
Old Calculator Museum News Archive
concering settlement of 4-years of litigation between Wyle Labs and
principals of Liberty Electronics.
8/3/2023
Updated the Links page, adding a link to
Bob's Calculators and Slide Rules site.
The Dentaku Museum
website is back online after being offline for a number of weeks.
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
7/30/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
6/29/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
6/12/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
6/5/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
5/16/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
5/12/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
5/11/2023
Added the Royal Digital I-K
calculator to the museum's Wanted
page.
4/30/2023
Added
announcement
of the liquidation of Hugle International to the
Old Calculator Museum News Archive
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
4/9/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updates to the Wanted
page
4/1/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section
3/26/2023
Update to the
Timeline of Calculator History
list in the
Articles & Documentation section to note the
passing of Gordon E. Moore on 24-Mar-2023
3/22/2023
Added Instruction Manual for the
Sharp Compet 364R calculator
to the Calculator Manuals section of the
Articles & Documentation
page.
Sincere thanks to Mr. Albert Richheimer for donation of the
high quality scan of this calculator instruction manual
3/12/2023
The technical problem at the Old Calculator Museum's web hosting service has
been resolved. Updates to the museum website are now able to occur and the
site has had all accumulated updates made.
Minor updates to the
Friden 1162
exhibit.
3/11/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updates to the Master H-1
exhibit.
3/8/2023
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
Minor update to the Victor 14-322
exhibit.
3/6/2023
Minor update to the
Sony Ends Production of Electronic
Calculators news item in the
Old Calculator Museum News Archive.
3/3/2023
Minor update to the
Victor 14-322
exhibit.
2/25/2023
Minor update to the
Monroe EPIC-2000 Announcment
news item in the
Old Calculator Museum News Archive.
2/16/2023
Minor updates to the exhibits for the
Monroe 920 and
Friden 1162
exhibits.
2/9/2023
>>>>NOTE:<<<<
Due to a web hosting service provider problem, updates to the Old Calculator
Web Museum have not been possible as of today (2/9/2023). The problem is
proving very difficult for the provider to solve, and until it can be fixed
updates to this log will still be made, but will not appear on the website
until the web hosting provider is able to fix the problem. At this time
there is no estimate as to when the problem will be fixed.
2/7/2023
Minor updates to the prototype exhibit for the
Olivetti Programma 101,
mostly correcting typographical errors.
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
2/4/2023
Updated the Old Calculator Museum's
Main Exhibit Page
to restructure text leading into the exhibits listing to provide
more details about aspects of the museum and the exhibits listing.
Updates to the Monroe 620
exhibit to provide improved photos.
2/3/2023
Numerous updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
1/15/2023
Added new Brochure Page
for the Monroe 950 to the
Advertising & Documentation Archive page.
1/13/2023
Numerous updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
1/1/2023
Wishing all visitors to the Old Calculator Museum website all the best
for 2023! May peace, safety, health, contentedness, and happiness be the
theme for the lives of all during this new year. And for calculator geeks
like me, may many cool and unusual calculators come your way in 2023!
12/27/2022
Updates to the Old Calculator Museum
News Archive in the
Articles & Documentation section.
12/26/2022
Numerous updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
12/18/2022
Updated the Links page
indicating that the wonderful
Dentaku Museum
website is back online after being offline for a number of weeks.
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
12/15/2022
Added new Advertisement
for the Sharp Compet 32 Model CS-32C to the
Advertising & Documentation Archive page.
Added new
Article
on the pre-production Sharp
QT-8D microCompet
calculator to the
News Archive in the
Articles & Documentation section.
12/13/2022
Significant updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
12/6/2022
Update to the Old Calculator Museum
News Archive in the
Articles & Documentation section.
12/5/2022
Minor updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
12/4/2022
Minor updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
11/20/2022
Numerous additions to the
Timeline of Calculator History
list in the
Articles & Documentation section.
11/19/2022
Minor additions to the
Timeline of Calculator History
list in the
Articles & Documentation section.
Update to the Old Calculator Museum
News Archive in the
Articles & Documentation section.
11/17/2022
A number of updates to the Old Calculator Museum essay
"Victor 3900 - History's Forgotten Miracle" in the
Articles & Documentation section.
11/12/2022
Updated the Links page to reflect
Dentaku Museum website now offline.
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
11/9/2022
Updates to the
Advertising & Documentation Archive
page to update some of the advertisements and improve organization of
some sections.
Updates to the
Wanted
page, mainly to clean up some typos and improve organization of some
sections.
11/8/2022
A few updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
11/3/2022
Added advertisements for chipmakers Electronic Arrays
and American Micro-systems, Inc.
to the
Advertising & Documentation Archive page.
Numerous corrections of typographical errors across the website.
11/1/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
10/20/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
10/18/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
10/17/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
10/16/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Significant updates to the Wanted
page to add additional information, correct typos, and add a few new
calculators to the list.
Updates to the Commodore(Casio)
AL-1000 exhibit.
10/9/2022
Updated the Links page to reflect
outage of the Dentaku Museum website due to maintenance.
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updated the
Toshiba BC-1411 exhibit to correct typographical and spelling errors.
10/8/2022
Update to the Old Calculator Museum
News Archive in the
Articles & Documentation section.
10/6/2022
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updates to the Old Calculator Museum
News Archive
in the
Articles & Documentation section.
Minor updates to the Old Calculator Museum essay on
Wang Laboratories
in the
Articles & Documentation section.
10/5/2022
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
10/1/2022
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
9/29/2022
Updates to the SCM Cogito 240SR
exhibit.
Updates to the Commodore(Casio)
AL-1000 exhibit.
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
9/24/2022
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
9/21/2022
Added Advertisement
for the Victor 18-1721 scientific/engineering electronic calculator to the
Advertising & Documentation Archive page.
9/4/2022
Added the Sony ICC-2500
programmable calculator to the museum's
Wanted
page.
8/29/2022
Update to the Old Calculator Museum
News Archive in the
Articles & Documentation section.
8/24/2022
Updates to the
Wang Laboratories: From Custom Systems to Computers article in the
Calculator History section of the
Articles & Documentation
page.
Sincere thanks to Mr. Douglas Crawford for Providing a Photo of VCFED Museum's
Complete Wang 4000 Computer System
8/20/2022
Minor update to the
Wang Laboratories: From Custom Systems to Computers article in the
Calculator History section of the
Articles & Documentation
page.
Minor update to the Wang 360E
exhibit.
8/18/2022
Added the
Busicom 120DM "Junior"
calculator
to the museum's Wanted
page.
8/16/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Added a new section to te Articles & Documentaton
section that includes the beginning of an archive of
Wang Laboratories' Programmer editions. This archive will
continue to grow as time permits.
8/15/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updated the
Victor 18-1441 exhibit to include more detail regarding the
microcoded LSI chipset used in the Victor Comptometer 1800-series calculators.
8/7/2022
Update to the Old Calculator Museum
News Archive in the
Articles & Documentation section.
8/6/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updated the Thanks &
Acknowledgements page to add a few recent donors.
8/2/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Update to the Old Calculator Museum
News Archive in the
Articles & Documentation section.
7/26/2022
Fixed the Google Custom Search function on the site. It had been
broken for quite some time due to changes made by Google, and it wasn't
a priority to get it fixed, but I finally got around to fixing it.
The search box appears at the top of each major page just below the menu
bar, and provides search capability across the entire Old Calculator Museum
website.
7/16/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
7/15/2022
Update to the Friden EC-132
exhibit to include a photo of the underside of the calculator with
the protective grille removed to expose the delay line, its amplifiers,
and keyboard circuitry.
Updated the Friden EC-130
exhibit to add an image of the EDTC-1 prototype showing the Bryant
C-105 memory drum.
7/12/2022
Addition to the
Calculator News Archive
page in the
Articles & Documentation section to add
another announcement
article for Texas Instruments' first calculator-on-a-chip Large Scale
Integration IC.
7/3/2022
Updated the Friden EC-1116
calculator exhibit to include information and photos of the optional
"CTR-2" Item Counter device that provides an indication of the number
of times the [+=] or [-=] keys have been pressed. Also made other
minor updates to the exhibit.
7/2/2022
Added Advertisement for the
Hewlett Packard 9821A calculator to the
Advertising & Documentation Archive page.
6/19/2022
Added a January, 1967,
Advertisement
for the
Sharp Compet 20
calculator to the
Advertising & Documentation Archive page.
Updated the Wanted page
for the Dero Sage 1 electronic calculator to include photos of an
actual example of the calculator.
Update to the
Calculator News Archive
page in the
Articles & Documentation section to add a brief
news-byte announcing
the bankruptcy of Bowmar Instruments Corp.
Updated the
Calculator News Archive
page in the
Articles & Documentation section to add a short
article announcing
the introduction of the market-shaking
Casio Mini
handheld battery-powered electronic calculator.
Updated the Wang 360E exhibit
to include information and photos of Wang Labs' Service Parts Kit for the
300-series calculators.
6/17/2022
Added Advertisement
(ca. 1966) for the
Sharp Compet 20
calculator to the
Advertising & Documentation Archive page.
6/10/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updated the Thanks &
Acknowledgements page to include a few recent donors of items to the
Old Calculator Museum.
5/29/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
5/21/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
5/11/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Updated the Sharp Compet
364R exhibit to fix some typos and minor updates.
4/24/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section, adding
some information and correcting some errors.
2/20/2022
Updated the SCM Marchant I
calculator exhibit to include images of the Large Scale Integration
chip sets made by AMI and Texas Instruments(TI), as well as an image of the
main logic board that uses the TI three-chip chip set.
Sincere
thanks to Warren & Amy Parks for donation of the TI main logic board,
as well as an AMI main logic board for the SCM Marchant I.
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
2/11/2022
Updated the Thanks &
Acknowledgements page to include acknwoledgement of a number of
donations of calculators and parts to the
Old Calculator Museum.
1/30/2022
Significant updates to the
Remington-Rand EDC-III exhibit.
1/24/2022
Updates to the Canon 161
exhibit.
1/22/2022
Added two additional vintage
advertisements (early 1966) for the
Wang Laboratories LOCI-2
calculator to the
Advertising & Documentation Archive page.
1/20/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
1/10/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
1/4/2022
Addition to the
Calculator News Archive
page in the
Articles & Documentation section to add an
article on
Autonetics' announcement that it is going to enter the custom Large
Scale Integration IC design and fabrication business.
1/2/2022
Updates to the the Facit 1121
exhibit to correct some typographical errors.
Added an additional
Advertisement for the
Sharp Compet 20
to the Advertising & Documentation Archive page.
1/1/2022
Wishing all visitors to the Old Calculator Museum the very best
for 2022!
Added Ad for
Andersen Laboratories, a company that manufactured delay lines used
in the
Victor 14-321 and
Victor 14-322
electronic calculators to the Advertising & Documentation Archive section.
1/1/2022
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Update to the
Calculator News Archive
page in the
Articles & Documentation section to add a brief
introduction article
for the Friden 1150
printing electronic calculator.
12/29/2021
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
Update to the
Calculator News Archive
page in the
Articles & Documentation section to add
introduction article
for the Casio AL-1000
calculator.
12/22/2021
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
12/20/2021
Added Advertisement for the
Sharp Compet 30 Model CS-30B to the Advertising & Documentation Archive section.
12/18/2021
Updates to the HP 9820A
exhibit.
12/18/2021
Minor updates to the HP 9825A
exhibit.
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
12/7/2021
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
12/5/2021
Added an additional
Advertisement for the
Sharp Compet 20
to the Advertising & Documentation Archive page.
12/2/2021
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
11/29/2021
Updated the
Timeline of Calculator History
list in the
Articles & Documentation section.
11/23/2021
Added Instruction Manual for the
Industria Macchine Elettroniche (IME) Model 26 calculator to the Calculator Manuals
section of the
Articles & Documentation
page.
11/8/2021
Added an additional
Advertisement for the Digital Devices division of Tyco
Laboratories to the
Advertising & Documentation Archive page.
11/7/2021
Added an
Advertisement for Digital Devices, Inc., a manufacturer of
magnetostrictive delay lines used in a number of early electronic
calculators, to the
Advertising & Documentation Archive page.
10/29/2021
Minor updates to the Main Calculator
Exhibit
Listing and the Exhibited Calculators by
Manufacturer Listing pages.
Minor update to the Wanted page.
10/21/2021
Added the Soviet Iskra 123 Electronc Calculator
to the museum's Wanted
page.
10/15/2021
Update to the Friden EC-132
exhibit to include information and photo of Friden's T-18705 Key Alignment Tool
used to assist in properly reassembling the complex mechanical keyboard
encoding mechanism for the Friden EC-130 and EC-132 calculators.
10/11/2021
Minor updates to the Main Calculator
Exhibit
Listing and the Exhibited Calculators by
Manufacturer Listing pages.
9/28/2021
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
9/24/2021
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
8/8/2021
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
8/2/2021
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
Minor update to the Main Calculator
Listing and the Calculators by
Manufacturer Listing pages.
7/31/2021
Updates to the
Timeline of Calculator History
list in the
Articles & Documentation section.
7/19/2021
Update to the
Singer/Friden 1160
exhibit.
7/18/2021
Updates to the
Timeline of Calculator History
article in the
Articles & Documentation section.
Minor updates to the Friden 1112
exhibit.
Some updates to the Friden 1118
calculator exhibit.
7/15/2021
Updates to the
Singer/Friden 1160,
Singer/Friden 1162,
and Singer/Friden 1166
exhibits to add information about Friden's R&D Laboratory production of
medium-scale counter ICs used in earlier production Friden 116x-series
calculators.
Minor update to the Friden 1114
exhibit.
7/11/2021
Corrected some inconsistencies in the
Timeline of Calculator History
article in the
Articles & Documentation section.
7/3/2021
Added a new article,
Delay lines - key to low cost in keyboard machines, explaining
delay line technology, to the
Calculator-Related Articles section of the
Articles & Documentation
page.
Minor updates to the Descal ASI-500 exhibit.
7/2/2021
Minor update to the
Sharp Compet 22 exhibit.
5/29/2021
Added an early
Advertisement for the Wang 700A electronic calculator
to the
Advertising & Documentation Archive page.
Ordered the Wang 700 section of the
Advertising & Documentation Archive page by date.
5/24/2021
Updated the Singer/Friden 1117
exhibit to include a photo of Hitachi's ELCA-42 calculator.
5/8/2021
Added
Advertisement for Wang 200/300-Series Keyboard/Display units for
Wang's Simultaneous Electronics Packages (210SE, 310SE, 320SE,
360SE)
to the
Advertising & Documentation Archive page.
5/6/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
Update to the
Calculator News Archive
page in the
Articles & Documentation section.
5/3/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
4/29/2021
Added the Casio 101-S
to the museum's Wanted
page.
4/24/2021
Added Texas Instruments'
SR-60 Program Coding Form, 1975
for the
Texas Instruments SR-60/SR-60A
calculators
to the
Advertising & Documentation Archive page.
Added Advertisement for
the Toshiba BC-1623G Programmable Electronic calculator to the
Advertising & Documentation Archive page.
4/22/2021
Added Texas Instruments'
SR-60 Price List, April 1, 1976
and
SR-60A Price List, July 14, 1978 for the
Texas Instruments SR-60/SR-60A
calculators
to the
Advertising & Documentation Archive page.
4/21/2021
Added Texas
Instruments SR-60A Newsletter, No. 6, May 1, 1978, a Newsletter for
Distributors of the
SR-60/SR-60A calculators
to the Calculator-Related Articles
section of the
Articles & Documentation
page.
4/12/2021
Added Advertisement for the
Sharp Compet 22 calculator to the
Advertising & Documentation Archive section.
4/10/2021
Minor updates to the exhibit for the
Texas Instruments SR-20.
4/1/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
3/25/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
3/21/2021
Updated the museum's Wanted
page.
3/9/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
3/6/2021
Update to the
Calculator News Archive
page in the
Articles & Documentation section.
Update to the
Timeline of Calculator History
page in the
Articles & Documentation section.
3/1/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
2/28/2021
Updates to the article
"Victor 3900 - History's Forgotten Miracle" article in the
Articles & Documentation section.
2/26/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
2/24/2021
Added Advertisement for the
Wang Laboratories 380 Programmer to the Advertising & Documentation Archive section.
2/23/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
Added the Sharp Compet 50
to the museum's Wanted
page.
2/22/2021
Minor update to the Hewlett Packard 9100B exhibit.
Minor update to the Wang 720C
exhibit.
Added Advertisement for the
Sharp Compet 30 Model CS-30B to the Advertising & Documentation Archive section.
2/21/2021
Update to the Calculator News Archive
page in the
Articles & Documentation section.
2/19/2021
Minor updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
2/11/2021
Added Reference Manual for the
Wang 720 A/B Advanced Programming Calculator to the Calculator Manuals
section of the
Articles & Documentation
page.
Added Instruction Manual for the
Sharp QT-8D Calculator
to the Calculator Manuals section of the
Articles & Documentation
page.
Added a new Advertisement
for the Sharp Compet 32 (CS-32A)
electronic calculator to the
Advertising Archive.
Added new Advertisement for
Wang 300-series calculators
to the Advertising Archive section.
2/3/2021
Minor update to the Sharp EL-8
exhibit.
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
2/2/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
Added a new Ad
for the Sharp Compet 30
electronic calculator to the
Advertising Archive.
A number of updates to the Wanted
page.
1/26/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
1/24/2021
Update to the Calculator News Archive
page in the
Articles & Documentation section.
1/21/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
1/17/2021
Added Reference Manual for the
Wang LOCI-2 Calculator
to the Calculator Manuals section of the
Articles & Documentation
page.
Updated the Wang 600 exhibit
to include an image of a Survey ROM Pack.
1/16/2021
Updated the Wanted page
to add the Hugle International
Hugle-8 calculator.
1/15/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
1/12/2021
Updated the
Timeline of Calculator History
page in the
Articles & Documentation section.
The Monroe 1860 online
Exhibit has been temporarily taken offline in order
to perform a major overhaul of the exhibit. It will return as soon as
possible.
1/8/2021
Update to the Calculator News Archive
page in the
Articles & Documentation section.
Added Programming Manual
for the
Monroe 1860 and Monroe 1880
Calculators to the Calculator Manuals section of the
Articles & Documentation
page.
1/7/2021
Added a new Brochure
for the Commodore AL-1000
electronic calculator to the
Advertising & Documentation
Archive.
Sincere thanks to Mr. Serge Devidts of the Calcuseum for providing the scans of this document.
12/30/2020
Updates to the Calculator News Archive
page in the
Articles & Documentation section.
12/28/2020
Minor update to the Victor 14-322
calculator exhibit.
Minor update to the article
"Victor 3900 - History's Forgotten Miracle" article.
12/26/2020
Updates to the Calculator News Archive
page in the
Articles & Documentation section.
Added a new Advertisement
for the Mathatronics
Mathatron electronic calculator to the
Advertising & Documentation Archive.
12/22/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
12/17/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
11/21/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
Updated the Calculator News Article
Archive in the Articles &
Documentation section.
Minor updates to the Victor
14-321 and Victor 14-322
calculator exhibits.
11/21/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
11/10/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
11/3/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
11/1/2020
Updated the
Wang Laboratories: From Custom Systems to Computers article in the
Calculator History section of the
Articles & Documentation
page.
10/22/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
10/19/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
10/16/2020
Updates to the History of Compucorp
article.
8/9/2020
Minor update to the Friden 130
exhibit.
7/23/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
Added "[Manual]" tags on calculator exhibit lists that can be clicked to see available operator's manual for the calculator.
Minor update to the Hewlett Packard HP-01 Calculator Watch.
7/11/2020
Updated the Monroe 1655 exhibit
to include information about the version of the machine marketed by Ricoh under OEM agreement with Monroe.
7/2/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
6/18/2020
Added new machine to calculators list: Busicom 141 [Exhibit Forthcoming].
Added new machine to calculators list: Lloyds Accumatic 100 [Exhibit Forthcoming].
6/10/2020
Updated the Wanted page
to add the Brother 310 and
Remington E3
calculators.
6/7/2020
Added to two new HP Journal articles to the "Calculator-Related Articles" in the
Articles & Documentation section.
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
6/1/2020
Updates to the
Commodore US*8 (Version I) calculator
exhibit.
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
5/31/2020
Updated the Wanted page
to add the Monroe 925
calculator.
Minor update to the
Monroe 920 calculator
exhibit.
Minor update to the
Casio AS-8A calculator
exhibit to include the Silver Reed SE-60 version of the machine.
5/25/2020
Minor updates to the Hewlett Packard 9100B exhibit.
Added new section entitled "Calculator-Related Articles" to the
Articles & Documentation area
to include vintage articles (e.g., magazine, journal, manufacturer) relating to calculators and their technology.
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
5/23/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
5/16/2020
Minor update to the
Wang C-52 exhibit.
5/6/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
5/5/2020
Updates to the
Timeline of Calculator History
page in the
Articles & Documentation section.
4/11/2020
Added a news "Photo Archive" section to the
Articles & Documentation section. This
section includes miscellaneous photos that are calculator-related, yet
don't necessarily fit anywhere else on the site.
4/2/2020
Updates to the Wanted page.
Minor update to the
Timeline of Calculator History
page in the
Articles & Documentation section.
3/14/2020
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
3/6/2020
Updates to the Wanted page.
3/1/2020
Added Casio 121 calculator
to the Wanted page.
Updated the Casio AS-L exhibit.
2/29/2020
Major updates to the Casio 121-A/AS-A exhibit. Added more photos and updates to the exhibit text.
2/17/2020
Added Sony Sobax ICC-88
to the Wanted page.
2/15/2020
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/13/2020
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
Added an Overview of the
Monroe Monrobot III Tube-Based Programmable Electronic Calculator to
the Historical Documents section of the
Articles & Documentation section.
2/12/2020
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/10/2020
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/9/2020
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
1/26/2020
Added Marketing Data Sheet
for the SCM Marchant Cogito 1016PR programmable printing electronic
calculator to the
Advertising & Documentation Archive.
1/25/2020
Added
Final Engineering Report
for the EC-130 Delay Line
for the
Friden EC-130 Calculator
to the Calculator Technology Notes section of the
Articles & Documentation
page. Sincere thanks to Mr. Al Kossow of the Computer History Museum
for providing the scan of this document.
1/22/2020
Added Operator Manual for the
Tektronix Model 31 Calculator
to the Calculator Manuals section of the
Articles & Documentation
page.
1/21/2020
Added
Tektronix' TEKSCOPE Magazine introducing the
Model 21
and Model 31 calculators
to the
Advertising Archive page.
1/11/2020
In the
Articles & Documentation
page, the
Calculator Documentation section was split into
two sections, one for Operation/User Manuals and the other for
Calculator Service Documentation and Schematics. This will
hopefully make it easier to find either type of documentation.
Note that in both sections, calculators are listed oldest to newer.
Added Operator Reference
Manual for the
Friden 1152 Programmable Electronic Calculator
to the Calculator Technical Information section of the
Articles & Documentation
page.
1/10/2020
Added Programming Reference
Manual for the
Friden 1151 Programmable Electronic Calculator
to the Calculator Technical Information section of the
Articles & Documentation
page.
1/1/2020
Added Reference Manual
for the Friden 1155 Advanced Programmable Electronic Calculator
to the Calculator Technical Information section of the
Articles & Documentation
page.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
12/4/2019
Added Instruction Manual
for the Friden EC-130
electronic calculator to the Calculator Technical Information section of the
Articles & Documentation
page.
Thanks to Mr. Al Kossow of the Computer History Museum for providing the scan of
this document.
11/29/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/28/2019
Minor updates to the Wang LOCI-2
exhibit.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/17/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/16/2019
Added Soemtron ETR-220
to the Wanted page.
11/15/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/12/2019
Updated the Sumlock/Bell Punch ANITA C-VII exhibit, adding a photo of Norbert(Norman) Kitz.
9/31/2019
Updated the Rockwell 960 exhibit, adding a photo of the EP-101 mini-printer production line, and
some additional text.
9/22/2019
Updated the prototype exhibit for the Olivetti Programma 101, adding an additional photo and
sore more text.
9/15/2019
Added Facit 1114 and
Facit 1115 to the
Wanted page.
9/8/2019
Updated the
Wang Laboratories: From Custom Systems to Computers article in the
Calculator History section of the
Articles & Documentation
page.
9/7/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
Update to the ICM-816 exhibit.
9/2/2019
Added new Advertisement
for the Friden 1150 calculator
to the
Advertising & Documentation Archive.
8/12/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
8/4/2019
Minor update to the
Sharp QT-8D exhibit.
7/26/2019
Updated the
Casio fx-1 exhibit.
7/13/2019
Added Preliminary
Product Bulletin
for the Presin Co., Inc. MODUPRINT modular printing system used in the
Wang LOCI Printer
peripheral for the Wang LOCI-2
calculator to the Calculator Technology Notes section of the
Articles & Documentation section.
Updated the Wang LOCI Printer
exhibit with additional information on the modular printing system
used in the device manufactured by Presin, Co., Inc./Practical Automation
Inc.
6/23/2019
Added new Advertisement
for the Friden1160 calculator
to the
Advertising & Documentation Archive.
6/22/2019
Numerous updates to the Wanted page.
6/20/2019
Updated the Calculator News Archive
page in the
Articles & Documentation section.
6/18/2019
Updates to the Wanted page to
include the Compucorp 275
Banker calculator.
Updated the Calculator News Archive
page in the
Articles & Documentation section.
Updates to the Timeline of Calculator
History page in the
Articles & Documentation section.
6/16/2019
Minor updates to the Tektronix Model 31 exhibit.
6/15/2019
Added Logic-Level Schematic
for the Friden 1150
printing electronic calculator to the Calculator Technical Information
section of the
Articles & Documentation page.
Minor updates to the Friden 1152
exhibit.
6/11/2019
Updated the Timeline of Calculator
History page in the Articles & Other
Information section to note the passing of Michael J. Cochran,
a gifted inventor and electronics engineer who worked for Cintra
on development of the Cintra 909
electronic calculator. Later, at Texas Instruments, he became the
company's chief calculator architect, co-designing (with Gary Boone) what is
considered the first commercial microcontroller which was embedded in
the functionality of Texas Instruments' electronic calculators. After many
years at TI, Mike started his own company
(Cochran Undersea Technology)
to develop and market the
Cochran Dive Computer, a sophisticated wrist-worn underwater scuba dive
time computer that set the benchmark for the art, and remains the industry
leader today.
6/5/2019
Added Logic-Level Schematic
for the Three-Counter (Serial Number >= 8500)
version of the
Friden EC-130
electronic calculator to the Calculator Technical Information section of the
Articles & Documentation
page.
6/4/2019
Minor updates to the History of Compucorp
article.
5/31/2019
Added Logic-Level Schematic
for the initial (Four-Counter) version of the
Friden EC-130
electronic calculator to the Calculator Technical Information section of the
Articles & Documentation
page.
5/29/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
5/27/2019
Update to the Friden 130
exhibit to include a photo of one of the very few remaining ICE Felix CE 30
calculators in existence. Thanks to Alexandru Floca for providing photos
of his extremely unusual calculator.
5/26/2019
Added Logic-Level Schematic
for the Friden 1166
electronic calculator to the Calculator Technical Information section of the
Articles & Documentation
page.
5/25/2019
Added Logic-Level Schematic
for the Friden EC-132
electronic calculator to the Calculator Technical Information section of the
Articles & Documentation
page.
Added Logic-Level Schematic
for the Friden 1160
electronic calculator to the Calculator Technical Information section of the
Articles & Documentation
page.
5/20/2019
Added Logic-Level Schematic
for the Friden 1162
electronic calculator to the Calculator Technical Information section of the
Articles & Documentation
page.
5/15/2019
Update to the Friden 130
exhibit.
Added Instruction Manual
for the Wyle Laboratories WS-01/WS-02
Scientific electronic calculator to the
Calculator Technical Information section of the
Articles & Documentation
page.
5/12/2002
Updated the proto-exhibit for the Olivetti Programma 101, adding additional photos.
5/11/2002
Updated the proto-exhibit for the Olivetti Programma 101.
5/9/2015
Updated the Calculator News Archive.
4/27/2019
Updated the Thanks &
Acknowledgements page to include thanks to Mr. Greg Tayman
for donation of a
Victor MEC/223 calculator and carrying case to the Old Calculator Museum.
4/24/2019
Major updates to the Victor MEC/225 exhibit to add the Victor MEC/223 to the exhibit.
Sincere thanks to Mr. Greg Tayman for donation of the Victor MEC/223 calculator and its carrying case to the museum.
4/22/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
Added new exhibit: Singer/Friden 1160.
Added new exhibit: Singer/Friden 1166.
Major updates to the Singer/Friden 1162 exhibit.
4/17/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/13/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/7/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/4/2019
Updates to the
Friden 1162 exhibit.
4/1/2019
Added new Advertisement
for the Monroe 990 calculator
to the
Advertising & Documentation Archive.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
3/30/2019
Minor updates to the Wang 144T exhibit.
3/29/2019
Added new Advertisement
for the Cintra 911 Statistician calculator to the
Advertising & Documentation Archive.
3/28/2019
An update to the Friden 130
exhibit to add a photo of a Friden 130 key chain marketing trinket. Sincere
thanks to Serge Devidts for providing the photo
Minor update to the Burroughs C3660
exhibit to add a photo of the magnetic card reader electronics board
Update to the Canon Pocketronic exhibit to include a photo of the inside of the Texas Instruments Cal-Tech
Added Australian Advertisement
for the Wang 370 Programmer to the
Advertising & Documentation Archive.
3/27/2019
Added new Advertisement
for the Wang 500 calculator to the
Advertising & Documentation Archive.
3/16/2019
Updated the Links page.
An update to the Friden 130
exhibit.
3/14/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
3/6/2019
Minor updates to the Sharp EL-8
and Facit 1111
exhibits.
3/4/2019
Updated the Friden 132 exhibit
to include a photo of the keyboard mechanism of the machine.
3/2/2019
Added new Advertisement
for the
Sharp PC-1001
calculator to the
Advertising & Documentation Archive.
Updated the Sharp PC-1001
exhibit to add information about the Rockwell PPS-4 micrprocessor used in
the calculator.
2/21/2019
Updated the Links page.
2/15/2019
Added Canon Canola 1200 Logic and
Timing Manual to the Calculator Technical Information section of the
Articles & Documentation
page.
Additional updates to the Burroughs C-3660 exhibit.
2/14/2019
Updates to the Burroughs C-3660 exhibit.
2/9/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/7/2019
Added two new advertisements for the
Tektronix Model 21
and Model 31 calculators to the
Advertising & Documentation Archive
2/2/2019
Updated the Friden 1113 exhibit.
Minor updates to the Friden 1114
exhibit.
Added new Advertisement
for the Friden 1166 calculator to the
Advertising & Documentation Archive
1/27/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
1/26/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
1/22/2019
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
1/16/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
1/13/2019
Updated the Advertising Archive.
1/10/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
A few minor updates to the Friden 130
exhibit.
1/7/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
1/6/2019
Updated the Calculator News Archive
in the Articles & Documentation
section.
1/3/2019
The exhibit for the Cintra/Tektronix
909 calculator is temporarily offline for considerable rework.
The exhibit will return when the work has been completed.
12/31/2018
Updates to the Wang 360SE exhibit.
Updated the Calculator News Archive
in the Articles & Documentation
section.
12/30/2018
Added new calculator exhibit for the
SCM Marchant I to the museum.
Sincere thanks to Mr. Steve Stroh for donation of this wonderful artifact.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
12/22/2018
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
12/14/2018
Updates to the Calculator News Archive
12/11/2018
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/29/2018
Updates to the Calculator News Archive
Minor updates to the Wang 144T exhibit.
11/27/2018
Update to the Calculator News Archive.
11/23/2018
Some updates to the Friden 130
exhibit.
11/4/2017
Updated the Thanks &
Acknowledgements page to include thanks to Ms. Judith McMahon
for making her father's
Rockwell 960 calculator, owner's manual, and dust cover available
to the Old Calculator Museum.
11/2/2018
Minor updates to the Tektronix Model 31 exhibit.
11/1/2018
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
10/27/2018
Update to the Calculator News Archive
10/26/2018
Added new calculator exhibit for
Rockwell 960 to the museum.
Added
Operating Manual
for the Rockwell 960 electronic
calculator to the Advertising & Documentation Archive section.
Added
Advertisement for the
Monroe 820 electronic calculator to the
Advertising & Documentation Archive section.
10/21/2018
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
10/6/2018
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
10/2/2018
Added
Self-Teaching Reference Manual
for the Wang 452 Advanced Scientist Electronic Calculator
to the Articles & Documentation section.
Sincere thanks to Bruce Lustig for making this scan of the original document available to the Museum.
9/10/2018
Updated the Monroe 1860 exhibit
to include a printout from an unusual program on the 1860.
Sincere thanks
to Charles Wolff for writing to the museum about this unusual program
and providing a photo of the printout.
8/25/2018
Added
Friden Master Design Document (MDD) Definition Document for the
Friden EC-130 and
Friden EC-132 to the
Articles & Documentation section.
Sincere thanks to Roger, Eugene, and Christopher Rueff, sons of former
Friden Senior Service Technician Clifford Rueff, for donation of their father's
sizable cache of Friden parts and documentation that made publication of
this document possible.
8/19/2018
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
8/3/2018
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
7/30/2018
Added
Service Manual
manual for the
Friden 1113
to the Articles & Documentation section.
Profound thanks to Roger, Eugene, and Christopher Rueff, sons of former
Friden Senior Service Technician Clifford Rueff, for donation of their father's
sizable cache of Friden parts and documentation that made publication of
this document possible.
7/26/2018
Added
Data-sheets
for Hitachi's HD-31xx-series Small- and Medium-Scale PMOS Integrated
Circuits to the Articles & Documentation
section.
7/22/2018
Added the
Four-Counter EC-132 MDD (Computer Printout)
for the
Friden EC-132
to the Articles & Documentation section.
7/17/2018
Added the
Temporary Service Manual
for the
Friden EC-132
to the Articles & Documentation section.
7/12/2018
Added
Service Manual Supplement
(Section 5) for the three-counter version of the
Friden EC-130
to the Articles & Documentation section.
Minor update to the Timeline of Calculator
History page in the Articles & Other
Information section.
7/6/2018
Added Complete
Service Manual
manual for the
Friden EC-130
to the Articles & Documentation section.
Sincere thanks to Roger, Eugene, and Christopher Rueff, sons of former
Friden Senior Service Technician Clifford Rueff, for donation of their father's
sizable cache of Friden parts and documentation.
6/25/2018
Added
Field Service Manual
manual for the
Friden EC-130
to the Articles & Documentation section. Sincere thanks to Roger, Eugene, and Christopher Rueff for making this document available to the Museum.
6/8/2018
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
5/21/2018
Some updates to the
Monroe 920 exhibit.
4/25/2018
Updated the Friden 130 exhibit to
include image of Calculator Release C-0045 document announcing the Entry Counter
option for the EC-130 calculator.
4/24/2018
Added new Friden
Service Fliers to the Technology Notes section of the
Articles & Documentation
page.
4/14/2018
Added new Friden
Service Letters to the Technology Notes section of the
Articles & Documentation
page.
3/17/2018
Update to the Calculator News Archive
3/9/2018
Updated the
Wang Laboratories: From Custom Systems to Computers article in the
Calculator History section of the
Articles & Documentation
page.
2/19/2018
Updated the Sharp EL-8 exhibit.
1/29/2018
Updated the Links page.
1/21/2018
Updated the Links page.
Updates to the Wanted page.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
12/30/2017
Update to the Calculator News Archive
Various updates to the Links page
to remove some dead links and add a few new ones.
12/9/2017
Added
Advertisement for the
Mathatronics Mathatron 8-48 with APS Expansion
to the Advertising & Documentation Archive section.
Updated the Monroe 1860 exhibit.
Updated the Friden 130 exhibit to
include a photo of a rare Friden tie-clip featuring the EC-130 calculator.
Sincere thanks to Mr. Geoffrey Baker for donation of this, and another
Friden tie-clip to the museum in October, 2017.
12/1/2017
Added Interesting
Online Article
for the Friden 132 calculator to the
Recollections & Reflections section of the
Articles & Documentation page. The article is an online article
from Popular Mechanics magazine with
video presented by Cliff Stoll of Numberphile
explaining the wonders of the Friden 132 calculator.
Updates to the Cintra/Tektronix 909
exhibit. Sincere thanks to Stephen for pointing out a spelling
error that I fixed, prompting me to make some other updates.
11/19/2017
Updated the Advertising Archive
to include an additional
advertisement for the Sharp Compet 20 calculator.
11/18/2017
Updated the Advertising Archive
page in the Articles & Other
Information section to include an additional
advertisement for the Sharp Compet 20 calculator.
Update to the Calculator News Archive
11/15/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
11/12/2017
Some updates to the History of Compucorp
article.
Update to the ICM-816 exhibit.
11/8/2017
Updates to the Calculator News Archive
11/3/2017
Updates to the Calculator News Archive
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
10/23/2017
Significant update to the ICM-816 exhibit.
9/25/2015
Updates to the
Monroe 920 exhibit.
Added Service Manual
for the Monroe 920 calculator to the
Calculator Manuals section of the
Articles & Documentation page.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
9/15/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
9/9/2017
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
9/7/2017
Updates to the
Casio AL-2000 exhibit.
8/27/2017
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
7/30/2017
Numerous updates to the Wanted page.
7/27/2017
Added announcement article for
the Olivetti Programma 101 calculator
to the Calculator News Archive.
6/25/2017
Minor updates to the Friden 1113 exhibit.
6/17/2017
Minor updates to the ICM-816 exhibit.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
6/8/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Added a vintage internal Friden document outlining (in a very limited form) the company's history to the Articles & Documentation section.
6/5/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
5/21/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the Wanted page to include
the Robotron K1003 (and K1002/K1001) calculator.
4/18/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
3/26/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section to include the passing of Robert H. Norman,
Electronics Engineer, and a key figure in the development of Integrated Circuit technology.
3/11/2017
Updated the Advertising Archive
page in the Articles & Other
Information section to include a new section with information
about Wyle Laboratories' Arithmetic Processors based on the calculating
engine from the Wyle Labs WS-01/WS-02 electronic calculators.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Varied updates to a number of different pages to correct typographical
errors.
2/2/2017
Updates to the SCM 240-SR exhibit.
Added announcement article for
the SCM 240/240SR calculators
to the Calculator News Archive.
2/1/2017
Updated the Thanks &
Acknowledgements page to include thanks to Mr. Lynn Cochran
for contribution of two Philips P25x-series calculators and spare
dot matrix printing unit.
1/27/2017
Major updates to the NCR 18-2 exhibit.
1/23/2017
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the Calculator News Archive
page in the Articles & Other
Information section.
Added scans of original documentation for the Victor 4900 to the Calculator Technology section of the
Articles & Documentation section.
Updated the Thanks &
Acknowledgements page to include thanks to Mr. Alfredo Logioia and
Mr. Bill Ewing for contributions relating to the Victor 4900 calculator.
Major updates to the Wanted page
for the Data Acquisition Corp. DAC-512 electronic calculator.
12/22/2016
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the Calculator News Archive
page in the Articles & Other
Information section.
12/6/2016
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
11/15/2016
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Minor updates to the Cintra/Tektronix 909 exhibit.
11/5/2016
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
11/2/2016
Added new exhibit: Victor 14-321
10/28/2016
Updated the Advertising Archive
page in the Articles & Other
Information section to include a new
marketing flyer for the Friden 132 calculator.
Sincere thanks to Mr. Lynn Cochran for donating this wonderful old
document to the Old Calculator Museum.
7/10/2016
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
6/15/2016
Updated the Timeline of Calculator History page in the Articles & Documentation section.
Updated the Advertising Archive
page in the Articles & Other
Information section.
5/22/2016
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
4/5/2016
Updated the Advertising Archive
page in the Articles & Other
Information section to include a new Advertisement for the Sharp Compet 20 calculator.
Minor update to the Sharp Compet 20 exhibit.
Significant updates to the History of Compucorp
article.
4/5/2016
Updated the Calculator News Archive
page in the Articles & Other
Information section.
Minor update to the Sharp Compet 20 exhibit.
1/25/2016
Updated the Calculator News Archive
page in the Articles & Other
Information section.
1/15/2016
Updated the Timeline of Calculator History page in the Articles & Documentation section.
1/13/2016
Added new Advertisement
for the Friden 1160 calculator to the
Advertising & Documentation Archive
1/12/2016
Added new Article
announcing the Friden 1160 calculator to the Friden sales
force to the
Advertising & Documentation Archive
1/10/2016
Added new Advertisement for the
Friden 1115 calculator to the
Advertising & Documentation Archive
1/4/2016
Updated the Calculator News Archive
page in the Articles & Other
Information section.
1/3/2016
Added new Advertisement for the
SCM Cogito 240-SR calculator to the
Advertising & Documentation Archive
1/1/2016
Updated the Calculator News Archive
page in the Articles & Other
Information section.
12/31/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
Updated the Timeline of Calculator History page in the Articles & Documentation section.
Minor updates to the Friden 1113 exhibit.
11/17/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
Updated the Timeline of Calculator History page in the Articles & Documentation section.
9/12/2015
Updated the Thanks &
Acknowledgements page to include thanks to Mr. Charles Smith for donation
of technical and service documentation for
Monroe 920 and 925
electronic calculators, as well as a fully functional Monroe 920
calculator to the museum.
Updates to the
Monroe 920 exhibit.
8/29/2015
Minor updates to the Tektronix Model 31 exhibit.
8/1/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
7/22/2015
Updated the Thanks &
Acknowledgements page to include credit to Mr. Bill Ewing for donation
of some Victor 4900 materials
to the museum.
6/29/2015
Minor update to the Sony ICC-500W exhibit to
include photo of one of Sony's prototype calculators.
6/25/2015
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
6/19/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
Added new Advertisement for the
Wang 370 progammer for the Wang 300-series calculators to the
Advertising & Documentation Archive
6/8/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
6/7/2015
Updated the Wanted page to include
the Omron 1214 calculator.
5/27/2015
Minor update to the History of Compucorp
article to add the Compucorp 110G calculator to the list of 100-series calculators.
Added new exhibit: Compucorp 110/X
Updated the Wanted page to include
the Compucorp 110G calculator.
5/18/2015
Added new exhibit: Monroe 1610
Special thanks to Craig and Steven Dunn for donation of this, their late father's calculator, to the Old Calculator Museum.
5/5/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
5/2/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
4/13/2015
Updated the Calculator News Archive
page in the Articles & Other
Information section.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
3/24/2015
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the Wanted page to add
two early Omron calculators. Sincere thanks to Takaharu Yoshida
for the photos of these calculator.
3/22/2015
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
3/20/2015
Updated the Wanted page to add
the first version Omron 800 calculator. Sincere thanks to Takaharu Yoshida
for the photo of the calculator.
3/17/2015
Updated the Timeline of Calculator
History page in the Articles & Other
Information.
3/12/2015
Updated the Wanted page to add
the Commodore C-108 calculator.
3/9/2015
Updated the Links page to reflect
the change of Serge Devidts' website name from BE-Calc to CALCUSEUM
3/1/2015
Updated the Calculator News Archive
Updated the Master H-1
exhibit
2/25/2015
Added new Advertisement for the
Wang 700-Series calculator to the
Advertising & Documentation Archive
2/24/2015
Updated the Calculator News Archive
2/5/2015
Updated the Calculator News Archive
1/30/2015
Updated the Calculator News Archive
1/9/2015
Updated the Calculator News Archive
1/7/2015
Updated the Calculator News Archive
1/3/2015
Updated the Timeline of Calculator
History page in the Articles & Other
Information.
Updated the Calculator News Archive
12/29/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information.
Updated the Calculator News Archive
12/15/2014
Updated the
Singer/Friden 1118 exhibit.
Updated the Wanted page
12/13/2014
Updated the
Singer/Friden 1117 exhibit.
12/12/2014
Added a new feature to the
Articles & Documentation section called
the Calculator News Archive. This
is a collection of vintage article clippings from newspapers, trade
publications, and vendor press releases relating to electronic calculator
development.
12/6/2014
Numerous updates to the Timeline of Calculator
History page in the Articles & Other
Information
11/23/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information section to include introduction dates of Denon
electronic calculators. Sincere thanks to Mr. Takaharu Yoshida for
providing this information.
Updated the Denon DEC-61A4
exhibit.
11/15/2014
Updated the Wang 360E exhibit
to include some additional information on the KM-220 computer that uses
Wang 300-series calculator circuitry as its math processing unit.
11/9/2014
Major update to the ICM-816 exhibit to include more historical information on the development of the
Electronic Arrays chip set used in the ICM-816.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
11/6/2014
Updated the Links page to reflect
new link for John's Wolff's Web Museum.
10/30/2014
Updated the Wanted page to add
Casio 152. Thanks to Mr. Takaharu Yoshida for the photo of this calculator.
Updated the Timeline of Calculator
History page in the Articles & Documentation section
10/26/2014
Updated the Victor 14-322 exhibit
to note the type of CRT used in the display system.
10/13/2014
Added new exhibit: Monroe 1655
Special thanks to David Lammi for donation of this great relic.
8/7/2014
Updated the Wanted page to add
Ricoh Ricomac 2420. Sincere thanks to Mr. Takaharu Yoshida for the photo
of this calculator.
7/17/2014
New posting to the Old Calculator Museum Blog.
7/7/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
6/26/2014
Updated the Sharp Compet 20
exhibit to include information about Olims Electronics, who manufactured
Compet 20 calculators in Australia under license from Sharp.
6/18/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
6/12/2014
Added new Advertisement for the
SCM Cogito 240-SR calculator to the
Advertising & Documentation Archive. Sincere thanks to Serge Devidts for making this advertisement available to the Old Calculator Museum.
6/9/2014
Updated the Thanks &
Acknowledgements page to include credit to a number of recent contributors
to the museum.
Updated the SCM Cogito 240SR exhibit.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the Wanted page.
5/8/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
5/4/2014
Added new Advertisement for the
Friden 130 calculator to the
Advertising & Documentation Archive
5/2/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
4/28/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
4/27/2014
Added new exhibit: Victor 4900
Special thanks to Marilyn Nelson for donation of her father's Victor 4900 calculators and materials.
4/23/2014
Added new Advertisement for the
Friden 132 calculator to the
Advertising & Documentation Archive
4/22/2014
Updated the Friden 132 exhibit
to include a photo and information about a robotic test machine that
was developed for testing of EC-130 and EC-132 calculators.
4/21/2014
Added new Advertisement for the
Friden 132 calculator to the
Advertising & Documentation Archive
Added new Advertisement for the
Friden 130 calculator to the
Advertising & Documentation Archive
Added another new Advertisement for the
Friden 130 calculator to the
Advertising & Documentation Archive
4/18/2014
Updated the Friden 132 exhibit
to include a photo of the unveiling of the Friden 132 to the sales force
in April, 1965. Also did other minor updates and corrections.
Numerous updates to the Friden 130 exhibit.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Added an additional advertisement
for the Friden 130 to the
Advertising & Documentation Archive section.
4/17/2014
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
4/15/2014
Updated the Friden 130 exhibit
to include vintage photographs of one of the large-scale prototypes of the
EC-130, as well as a photo from the formal introduction of the EC-130.
4/3/2014
Updated the Articles & Other
Information section to include an interesting YouTube video on early Japanese
electronic calculator history.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
12/1/2013
Updated the Wanted page.
11/16/2013
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
10/15/2013
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
8/25/2013
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
7/23/2013
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
7/17/2013
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the Master H-1
exhibit to include information about the Master II, a follow-on machine
to the Master H-1.
10/26/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section to note the passing of Charles Falconer, designer
of the amazing DAC-512
programmable calculator, circa mid-1965.
9/13/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Added
MITS 7400 scientific/engineering
calculator to the
Wanted page.
8/23/2012
Updated the Bohn Omnitrex 8
exhibit to add a photo of the Bohn Omnitrex 12, a twelve digit machine
that is visually almost identical to the Omnitrex 8, but with four
additional digits of capacity, added constant mode, and full support for
numbers with decimal points. Thanks to Jared Tichy for the photo of
this machine.
8/23/2012
Updated the Bohn Omnitrex-8
exhibit to include information a similar machine with twelve digits
of capacity.
7/27/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
7/25/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section to reflect the passing of Robert Ragen, designer of
the Friden EC-130 calculator.
Added permanent dedication to Robert Ragen in the EC-130 exhibit.
7/2/2012
Added Advertisement for the
Facit 1132 calculator to the
Advertising & Documentation Archive
6/28/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
5/15/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
4/17/2012
Added Brochure for the
Sharp Compet 361R calculator to the
Advertising & Documentation Archive
3/12/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
Minor updates to the Cintra/Tektronix 909 and Tektronix Model 31 exhibits.
2/21/2012
Updated the Thanks &
Acknowledgements page to include credit to a number of recent contributors
to the museum.
2/17/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
2/15/2012
The Old Calculator Museum "Guest book" feature is temporarily offline. The service provider that the museum was using to provide the Guest book services has decided to shut down their services. I am looking for another Guest book solution which I will put in place as soon as possible. If you need to contact the museum, please visit and read the EMail page. Sorry for the inconvenience.
1/31/2012
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
1/22/2012
Updates to the Brother Calther 412 exhibit.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
11/14/20l1
Added April, 1973 Data Sheet for the
Wang 600-Series calculators to the
Advertising & Documentation Archive
11/13/2011
Added January, 1976 Price List for the
Wang 600-Series calculators to the
Advertising & Documentation Archive
9/21/2011
Added early (late 1965) Advertisement for the
Sharp Compet 20 (CS-20A) to the Advertising & Documentation Archive section.
9/17/2011
Added Front-page Article on passing of Carl M. Friden, founder of Friden Calculating Machine Company.
Sincere thanks to Dick Ahrens for providing an original copy of the Friden corporate newspaper article from April 30, 1945.
9/11/2011
Updated the
Wang Laboratories: From Custom Systems to Computers article in the
Calculator History section of the
Articles & Documentation
page. Added more information and photos of Wang's 4000 Computer system
Sincere thanks to Bob Trottier for photos he provided.
9/10/2011
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
9/8/2011
Added a new article,
Sharp Calculator Serial Number Secrets to the Articles & Other
Information section.
9/6/2011
Made a new posting to the Old Calculator Museum Blog.
6/21/2011
Updated the Texas Instruments SR-60 exhibit to correct an error stating that the LSI ICs in the
machine were CMOS-technology devices. In reality, the devices were
made with PMOS technology.
Sincere thanks to Eric Smith for pointing out this error.
6/12/2011
Updated information on Monroe 820/820A calculator in the
Advertising & Documentation Archive
section for the machine, along with updates to the WANTED page for the 820/820A.
5/16/2011
Updated the
Victor 3900 - History's Forgotten Miracle article to correct a few
typographical errors, along with adding a few additional images.
Sincere thanks to George Lemaster for providing these images.
2/26/2011
Added
Friden "Computer Printout"
document for the
Friden EC-130
calculator to the Articles & Documentation section. This document outlines the internal logic and wiring of the
EC-130. Special thanks to Roger, Christopher, and Eugene Rueff for making this document available to the Museum.
1/20/2011
Added Advertisement for the
Sharp Compet 30 CS-30B (updated version of the original Compet 30 Model CS-30A)
to the Advertising & Documentation Archive section.
Sincere thanks to Takaharu Yoshida for making providing the scan of this ad.
1/9/2011
Added a new article,
Victor 3900 - History's Forgotten Miracle to the Articles & Other
Information section.
12/22/2010
Updated the Friden EC-132 exhibit to add photos and information about the unique adjustable
extender board for the EC-130/132 calculators.
12/19/2010
Updated the
Friden EC-1113 exhibit
to include information about Hitachi's ELCA-22.
Updated the
Friden EC-1114 exhibit
to include information about Hitachi's ELCA-24.
Updated the
Friden EC-1115 exhibit
to include information about Hitachi's ELCA-32.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
11/23/2010
Updated the Facit 1121 exhibit to
include more information on the development of the relationship between
Hayakawa Electric and Facit.
Sincere thanks to Mr. Takaharu Yoshida for providing some historical
information and scan of an old Japanese Facit 1121 ad.
11/23/2010
Added new exhibit: Facit 1121
Sincere thanks to Ms. Grace Ulbricht and Mr. Arthur Beach for donation
of Facit 1121 calculators to the museum.
Updates to the Sharp Compet 20 exhibit to include information on the [000] key.
11/21/2010
Added
Operating Manual
for the Monroe EPIC 2000/3000 Calculator
to the Advertising & Documentation Archive section.
Sincere thanks to Harry Pottol for making this document available to the Museum.
11/13/2010
Update to the
Friden 1162 exhibit to add photo the very unusual Item Counter
option for the calculator. Thanks to Gerard Timmerman for providing
this photo.
11/6/2010
Update to the
Monroe 1860 exhibit and Spec Sheet.
Minor update to the SCM Cogito 240SR
exhibit to add some information about delay line manufacturer Digital
Devices.
Minor update to the Sony ICC-500W exhibit relating to Sony's licensing of Bell Labs transistor technology.
7/14/2010
Added
Advertisement for the
Monroe EPIC 2000/3000
calculator
to the Advertising & Documentation Archive section.
7/20/2010
Added
New Product Introduction Article for the
Cintra 911 Statistician
to the Advertising & Documentation Archive section.
Thanks again to Takaharu Yoshida for sending the scan of this article.
7/14/2010
Added
Advertisement for the
Mathatronics Mathatron III
calculator system
to the Advertising & Documentation Archive section.
Thanks to Takaharu Yoshida for sending the scan of this ad.
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
7/8/2010
Added
Advertisement for the
Cintra 909
calculator
to the Advertising & Documentation Archive section.
Thanks to Mr. Takaharu Yoshida for providing the scan of this original
advertisement.
7/5/2010
Added
Advertisement for the Dero Sage 1
calculator
to the Advertising & Documentation Archive section.
Added Advertisement for the Mathatronics Mathatron Version II calculator
to the Advertising & Documentation Archive section.
Added Advertisement for the Mathatronics Mathatron 4280 calculator
calculator
to the Advertising & Documentation Archive section.
Added new Advertisement for
Wang 300-series Simultaneous Electronics (SE) calculators
to the Advertising & Documentation Archive section.
Added new Advertisement for
the Wang 380 Programmer Keyboard/Display unit
to the Advertising & Documentation Archive section.
Sincere thanks to Takaharu Yoshida for providing the scans of these original
advertisements.
6/26/2010
Updated the
Tektronix Model 31 exhibit
to include a photo of a one-off production concept utilizing a more computer-like
color scheme rather than the "Tek Blue" instrumentation-oriented color scheme.
Updated the Commodore 500E exhibit to include added photo of calculator's backplane.
6/6/2010
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
5/29/2010
Updated the
Old Calculator Museum Blog.
5/12/2010
Added Front Cover of Tektronix Scientist 909 Operator Manual
to the
Advertising & Documentation Archive
5/9/2010
Updated the
Tektronix Model 31 exhibit
to include additional information on the calculator chip set, programmer
board, and some minor corrections and style changes.
4/5/2010
Added July, 1971 Commercial Price List for the
Wang 700-Series calculators to the
Advertising & Documentation Archive
Added Wang 700-Series Product Brochure to the Advertising & Documentation Archive
Thanks to Jim Battle for donation of these documents.
Added new exhibit: Commodore 500E
4/4/2010
Added Sept. 1970 Commercial Price List for the
Wang 700-Series calculators to the
Advertising & Documentation Archive
Added November, 1971 Commercial Price List for the
Wang 500-Series calculators to the
Advertising & Documentation Archive
Added Wang 500 Sales Brochure to the Advertising & Documentation Archive
Thanks to Jim Battle for donation of these documents.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
3/28/2010
Added
Advertisement for Wang's
line of calculators, dated November, 1971,
to the Advertising & Documentation Archive section.
Sincere thanks to Jim Battle for donation of this document to the museum.
3/28/2010
Added
Front Cover of Programming Electronic Calculators manual for Wang 600-Series calculators
to the Advertising & Documentation Archive section.
Thanks to Jim Battle for donation of this document to the museum.
2/24/2010
More updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/19/2010
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
2/13/2010
Added
Canon 161 Advertisement
to the Advertising & Documentation Archive section.
2/6/2010
Significant updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/2/2010
Updated the Timeline of Calculator
History page in the Articles & Other
Information section.
1/30/2010
Updated the Friden 130 exhibit
to include information on differences in decimal point setting locations
between prototype machines used early on in the marketing process and
production machines, as well as Friden's "fix" for customers who complained
about it.
1/12/2010
Updated the Friden EC-132 exhibit to include information on a new donation received by the museum of a Friden EC-132, Serial #11945, received from Mr. Pat Scandalis. The museum
wishes to express its sincere thanks to Mr. Scandalis for his generous donation.
1/9/2010
Added Google Custom Search function to site. Search box appears at the top of each major page, and provides search capability across the entire Old Calculator Museum website.
9/19/2009
Updated the
Old Calculator Museum Blog.
Updated the Friden 130 exhibit
to include information on an optional entry counter option that was made
available for both the Friden 130 and 132 calculators in June of 1965.
9/19/2009
Updated the Links page to include
a link to Brian Cauchi's Friden 130 on a FPGA website. Brian has built a facsimile
of a Friden 130 using current-day FPGA (Field Programmable Gate Array)
technology and an oscilloscope for the display. An amazing accomplishment,
very worthy of checking out.
Added Monroe 610 to the
Wanted page.
8/15/2009
Added
Original Purchase Order
for a Monroe 1655 calculator
to the Advertising & Documentation Archive section. Sincere thanks to US Tsubaki, Inc, Acme Chain for making this document available to the Museum.
8/7/2009
Update to the
Compucorp 122E exhibit to include information about integrated circuits with
Garrett branding, along with other general updates.
6/7/2009
Updated the
Old Calculator Museum Blog to add an entry about a recently received donation to the museum.
Numerous other minor updates.
4/30/2009
Updated the
Adler 804 and
Miida MC840 exhibits
to provide additional information on the Hitachi-made
LSI chip set used in these machines.
4/28/2009
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/21/2009
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section. Sincere thanks to Robert H. Norman for providing information on events in the history of General Micro-electronics (GM-e).
Added new Video of Wang 360KT
Trig Keyboard performing trigonometric operations
in the Articles & Other
Information section.
3/26/2009
Added the Casio 161 calculator to the
Wanted page. Thanks to Takaharu Yoshida for providing the photo of this machine.
3/25/2009
Updated the
Commodore 1121
exhibit to include additional information about Casio's first generation
MOS integrated circuit calculators.
3/23/2009
Added the Sanyo ICC-0161 calculator to the
Wanted page. Thanks to Gerard Timmerman for providing the photo of this machine.
3/22/2009
Added
Service Manual
manual for the
Friden 1115
to the Articles & Documentation section. Special thanks to Roger, Eugene and Christopher Rueff for making this document available to the Museum.
3/21/2009
Updated the
Friden EC-1113
exhibit to include a Spec Sheet and other additional
information.
3/20/2009
Added January, 1972 Commercial Price list for the
Wang 500-Series
calculators to the
Advertising & Documentation Archive
page.
3/19/2009
Updated the
Tektronix Model 31 exhibit
to include photo and information on the E31 variant.
3/17/2009
Updated the Wanted
page for the
Rockwell 900-Series Programmable Calculators to include a photo of
the Rockwell 940 Financial Calculator. Thanks to Mr. Gerard Timmerman
for providing the photo of this machine.
2/28/2009
Added new "Historical Documents" section to the Articles & Documentation section of the museum.
Added scan of 1965 Friden Competitive Analysis document to the Historical Documents section of the Articles & Documentation section. Special thanks to Frank Philipse for providing the scan of this amazing old document.
2/26/2009
Added Brochure
for the Wyle WS-01/WS-02 "Scientific"
to the
Advertising & Documentation Archive
page. Special thanks to Randy Lieberman for making this document available
for scanning.
2/24/2009
Added scan (PDF) of the
Instruction Manual for the
IME 26 calculator to the
Advertising & Documentation Archive page. Thanks to Mr. Frank Philipse for making this document available.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
Numerous updates to the SCM
Cogito 240SR exhibit.
Updated the Wanted page for the Dero
Sage 1 calculator to include a better photo of the machine, and more
detailed specificiations.
Updated the Wanted page to
include the Victor 3900
electronic calculator.
2/19/2009
Updated the Friden 130 exhibit
to include a photo of a vintage Westinghouse 5DEP1 CRT Tube as used in the Friden
EC-130/EC-132 calculators.
2/7/2009
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/5/2009
Added Dictaphone 1620 calculator
to the Wanted page.
1/26/2009
Updated the Sharp Compet 20
exhibit to include additional information about Facit's version of the machine,
the Facit 1121.
1/16/2009
Revamped the photo gallery of the
The Physical Old Calculator Museum,
hosted in the Articles & Other
Information section.
1/10/2009
Updated the Friden 130 exhibit
to include an early photo of Larry Kramer (Chief Draftsman) and Dick Ahrens (Electronics Engineer) working on the schematic of the Friden 130.
1/2/2009
Sincere thanks to Mr. Arnold Allen for donation of a Wang 360SE electronics
package, a Wang 370 Programmer, Wang 371 Punched Card Reader, and various
Wang Labs and Olivetti Programma 101 documentation.
Updated the Thanks &
Acknowledgements page to acknowledge Mr. Arnold's donation.
12/23/2008
A new feature is added to the Old Calculator Web Museum. The museum now has
its own blog.
A link to the blog has been placed in the
Articles & Documentation page
for visitors to use to access the blog. The blog is a place where the curator
can ramble on about various projects going on in the museum, interesting
discoveries or tidbits of information, or whatever else may be knocking around
inside his head at any given time. Please check out the blog to learn about
work to restore a Wang 370/371 Programmer.
12/17/2008
Added Instruction Manual Front Cover
for the Friden EC-132 to the
Advertising & Documentation Archive page.
12/10/2008
Added photo (thanks to Takaharu Yoshida) of the Sanyo ICC-141 calculator
to the Wanted page.
Update the Friden 132 exhibit to
include a link to an original Friden document explaining in detail the
method by which the 132 calculates square roots.
Added Friden 132 Square Root Mathematics document to the Articles & Documentation section of the museum.
The Friden 132 exhibit is now permanently dedicated to the memory of Clifford
Rueff, a senior service technician for Friden/Singer/TRW who worked out of
the Denver, Colorado office.
11/24/2008
Added Friden 1201 Advertisement
to the
Advertising & Documentation Archive page.
Updated the exhibit on the
Friden 1118 to include information regarding a factory-sanctioned
modification the the 1118 that provides access to the square root function.
Thanks to Roger, Christopher, and Eugene Rueff for providing original Friden service letter
documentation.
Minor update to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/21/2008
Updated the
Wang Laboratories: From Custom Systems to Computers article in the
Calculator History section of the
Articles & Documentation
page.
Updates to the Wanted page.
11/12/2008
Updated the Friden 130 exhibit
to include additional technical information.
Minor updates to the Friden 132 exhibit.
11/10/2008
Added Friden 130 Introduction Brochure to the Advertising & Documentation Archive page. Sincere thanks to Roger, Christopher, and Eugeue Rueff for donation of this and much more early Friden calculator material to the Old Calculator Museum.
11/1/2008
Updated the ICM-816 exhibit to include information about Sony's ICC-88, which used the same
Electronic Arrays chip set as the ICM-816.
10/29/2003
Numerous updates to the SCM/Marchant
Cogito 240SR exhibit to improve readability, correct spelling and grammar
errors, and add other bits of information.
10/25/2008
Updated the preview exhibit for the
Mathatronics Mathatron 8-48MII
to include information on the limited production
run of Mathatron calculators that utilized hybrid resistor modules to
replace discrete resistors.
10/9/2008
Updated the Texas Instruments SR-60 exhibit to include more information, and a photo of a SR-60
magnetic card.
Sincere thanks to Mike Cochran for donation of a very nice SR-60A calculator, along with a bunch of magnetic cards to the Old Calculator Museum.
9/2/2008
Added Marketing Flyer
for the Brother Calther/Procal 412 calculator to the
Advertising & Documentation Archive page.
Updates to the Brother Calther 412 exhibit.
8/16/2008
Added Marketing Brochure
for the Wang 600 Series
calculators to the
Advertising & Documentation Archive page.
8/12/2008
Added new exhibit: Wang 462 Statistical Programmable
Added new "Tech Note" Wang 400-Series Known Program Codes to the Articles & Other
Information section.
8/9/2008
Minor updates to the
Compucorp 140 exhibit.
7/3/2008
Updated the Wang 600 exhibit to include some tidbits about a solid-state Microcode ROM that may
have been offered in production (in place of the wire-rope/ferrite transistor
ROM), or as a factory replacement part.
7/23/2008
Updates to the Wanted page for
the Wyle WS-02
Updated the History of Compucorp
article to include a better photo of the Wyle Laboratories WS-02 calculator.
Special thanks to Randy Liebermann for providing some old calculator advertising
literature that he has in his collection for scanning and presentation in the Old Calculator Web Museum.
7/16/2008
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
7/2/2008
Updates to the
Wanted page.
5/26/2008
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/7/2008
Updated the FAQ
document in the Articles
section.
Updated the EMail
page to include additional information regarding repair recommendations
for calculators.
3/15/2008
Minor updates to the Hewlett Packard 9100B exhibit.
3/9/2008
Updated the Wang 720C exhibit to
include new information regarding a "preview" of the HP 9100A given to Dr.
Wang by Bill Hewlett of Hewlett Packard. Thanks to Steve Leibson
of HP9825.COM for
allowing use of this tidbit of information gleaned from an interview that
he did in February of 2008 with Tom Osborne, chief designer of the HP 9100A.
For more wonderful insights on the development of the 9100A, and to be able
to view the video of the interview with Tom Osborne, please visit Steve's Story of the Development of the HP 9100A.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/17/2008
Updated the
History of Compucorp article in the
Articles & Documentation
section. Added photo of Compucorp 275 Banker to the paper.
2/17/2008
Added Advertisement
for the Control Data Corporation "Remote Calculator" to the
Advertising & Documentation Archive page.
1/5/2008
Added Advertisement
for the Canon 167 electronic calculator to the
Advertising & Documentation Archive page.
1/2/2008
Added early (April, '68) version of the "Why Companies Standardize on Wang Electronic Calculators" Advertisement
for the Wang 300-Series
calculators to the
Advertising & Documentation Archive page.
1/1/2008
Happy New Year!
Added early (February, 1969) Advertisement
for the Wang 700 calculator to the
Advertising & Documentation Archive page.
12/27/2007
Added April, 1966 Advertisement
for the Mathatronics Model I calculator to the
Advertising & Documentation Archive page.
Added August, 1965 Advertisement
for the Wyle Laboratories "Scientific" Electronic Calculator to the
Advertising & Documentation Archive page.
12/24/2007
Added March, 1968 Advertisement for the Wang 300-Series calculators to the
Advertising & Documentation Archive page.
Added May, 1966 Advertisement
for the unique expansion unit for the Mathatronics Version I calculators to the
Advertising & Documentation Archive page.
12/20/2007
Update to the Commodore AL-1000 exhibit.
Sincere thanks to Matthew Currie for donation of a very nice, early
serial-number AL-1000 in fully operating condition to the Old Calculator
Museum.
Updated the Thanks &
Acknowledgements page to acknowledge Mr. Currie's donation.
12/10/2007
Added March, 1968 Advertisement for the Mathatronics 8-48 Model II to the
Advertising & Documentation Archive page.
12/9/2007
Added January, 1968 Advertisement for the Monroe EPIC 3000 to the
Advertising & Documentation Archive page.
8/28/2007
Added front cover of Advanced Programming Reference Manual for Monroe 1800 Models to the
Advertising & Documentation Archive section.
Sincere thanks to John Engels for donation of this document to the Old Calculator Web Museum.
Added a new story to the "Recollections & Reflections"
section of the Articles & Documentation
page, about use of a Monroe 1880 calculator by Mr. John Engels at the Oregon
Bureau of Land Management to revolutionize the way that land management
calculations were performed. Mr Engels' story outlines the "discovery" of the power of the Monroe 1880
"Adding Machine" that was one day dropped on his desk, that eventually
resulted in a letter from then President Gerald Ford commending Mr.
Engels for his work in saving the BLM thousands of dollars by increasing
productivity.
8/25/2007
Updated the Wang LOCI-2
exhibit to include more accurate information about the Wang Laboratories
Linasec machine. Special thanks to George Finn for providing a great deal of
insight as to the true nature of the Linasec.
7/26/2007
Added Partial Line Advertisement for Sharp Calculators, Circa 1973 to the
Advertising & Documentation Archive page.
7/15/2007
Added Initial Wholesale Price List for the Casio Mini to the
Advertising & Documentation Archive page.
Added Marketing Handout for the Casio Mini to the
Advertising & Documentation Archive page.
7/14/2007
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
7/13/2007
Added Marketing Flyer for the Casio Mini to the
Advertising & Documentation Archive page.
7/6/2007
Added Early Specification Sheet for the NCR 18-1 to the
Advertising & Documentation Archive page.
7/5/2007
Added the NCR 18-15 calculator to the
Wanted page.
7/2/2007
Added the NCR 18-1 calculator to the
Wanted page.
6/27/2007
Added Marketing Document for the NCR 18-3 to the
Advertising & Documentation Archive page.
Added the NCR 18-3 to the
Wanted page.
6/7/2007
Updated the Master H-1
exhibit to include information about SCM's OEM version of the machine,
marketed as the SCM F-16.
6/5/2007
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
5/14/2007
Updated the Commodore C112
exhibit to include information about "early" and "late" versions of the
calculator. Sincere thanks to Mark Wyman for providing information and photos
of his later C112.
5/5/2007
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/30/2007
Updated the
Sharp QT-8D exhibit with additional information relating to a copy
of the QT-8D made in the Soviet Union.
4/28/2007
Added Advertisement for the Toshiba BC-1412 to the
Advertising & Documentation Archive page.
3/2/2007
Added Wang 100-Series marketing brochure to the
Advertising & Documentation Archive page.
3/1/2007
Added Sharp Compet 32 marketing brochure to the
Advertising & Documentation Archive page.
2/25/2007
Added Sharp Compet 22 marketing brochure to the
Advertising & Documentation Archive page.
Added February, 1973 Casio Electronic Calculator Retail Price List to the
Advertising & Documentation Archive page.
Added Mathatronics Mathatron "CS" Calculator/Computer System Brochure to the
Advertising & Documentation Archive page.
2/22/2007
Added Sharp Compet 17 marketing brochure to the Advertising & Documentation Archive page.
1/20/2007
Updated the
Cintra/Tektronix 909 exhibit with additional information. Special thanks to
Mr. Jack Gilmore for sharing some of his experiences as a Tektronix engineer involved in the reimplementation of the Cintra/Tektronix 909 into the Tektronix
Model 21 and 31 calculators.
11/24/2006
Updated the
Wang 700-Series Architecture Document to include information about a
mysterious microcode function (MOP14), which is listed in known Wang
documentation as an illegal or spare function, but has found to be used within
700-Series calculator microcode. Further evidence indicates that this particular
MOP code (1110) is also referenced in schematics, but the logic behind its
function is quite convoluted, and has yet to be deciphered. If anyone out
there knows the function of MOP14, please get in touch.
For now, this function remains a mystery, and the document has been updated
to reflect this mystery.
11/21/2006
Updated the
Wanted page to include the MITS 816 calculator. Thanks to Steve Shepard for
supplying a nice photo of his original MITS 816.
11/20/2006
Updated the
History of Compucorp essay in the
Articles & Documentation
section. Added reference to the Compucorp Model 322G. Thanks to Tom Cham
for pointing out this previously unknown (to the author) model.
11/19/2006
Added new exhibit: MITS 7440 Scientific
Added MITS 7440 Operation Manual
to the Advertising & Documentation
section.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/17/2006
Added Wang 700 Programming Form
to the Advertising & Documentation
section. This document is in PDF form, and is suitable for printing and use as a programming form for Wang 700-Series calculators.
11/11/2006
Updated the
Friden 1152 exhibit
to include additional photo of an OEM replacement ink roller.
11/5/2006
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
9/10/2006
Added Data Sheet for the
Wang 710-1 Fixed/Removable Disk Drive.
Updated Data Sheet for the Wang 701 Output Writer in the Advertising &
Documentation Archive.
Added Data Sheet for the
Wang 711 I/O Writer
to the Advertising & Documentation Archive.
Updated Data Sheet for the
Wang 703 Paper Tape Editor
in the Advertising & Documentation Archive.
Added Data Sheet for the
Wang 704 Punched Card Reader
to the Advertising & Documentation Archive.
Added Data Sheet for the
Wang 706/707 Teletype Interface
to the Advertising & Documentation Archive.
Added Prelimiary Data Sheet for the
Wang 712 Flat Bed Analog Plotter
to the Advertising & Documentation Archive.
Added Prelimiary Data Sheet for the
Wang 612 Flat Bed Analog Plotter
to the Advertising & Documentation Archive.
9/9/2006
Added Data Sheet for the
Wang 705-1A "MicroFace" External Device Interface
to the Advertising & Documentation
Archive.
Added Front Cover for the Wang 500 Reference Manual to the Advertising &
Documentation Archive.
Added Wang 600 Specifications to the Advertising &
Documentation Archive.
8/30/2006
Major update to the Commodore AL-1000 exhibit.
7/26/2006
Added new exhibit: Remington-Rand EDC-III.
7/10/2006
Added image of original
Wang 700-Series Equipment Purchase Agreement dated May, 1972.
Thanks to Morris and David Greene for donation of this document to the Old Calculator Web Museum.
6/23/2006
Updated the Links page to include
a link to Jim Battle's Wang 2200.org website, documenting Wang's early computers running BASIC that were
follow on designs from Wang's high-end desktop electronic calculators.
6/6/2006
Added image of front over of the July, 1971 version of
the Wang 720 A/B Standard Trigonometric Program
to the Advertising & Documentation
Archive.
Thanks to Morris and David Greene for donation of this document to the Old Calculator Web Museum.
5/27/2006
Updated the
Wanted page to include additional
information relating to two different versions of the Sperry Remington EDC-III,
the EDC-III and EDC-IIIA. Also removed the Canon 167P from the Wanted list.
5/6/2006
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/12/2006
Updated the Links page to include
a link to Nathan Zeldes' Possibly Interesting Website. A fun site to visit, with a section on vintage
calculating and computing machines, along with many other interesting topics.
4/9/2006
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
3/12/2006
Updated the
Compucorp 120 exhibit
to include additional information relating Monroe's OEM version of the
Compucorp 120, the Monroe 1652.
Added new exhibit: Sharp Compet 241.
3/9/2006
Updated the Sharp Compet 30
page in the Wanted section to include additional
information relating to two different versions of the Compet 30, the CS-30A,
and the CS-30B.
3/3/2006
Updated the Links page to include
a link to Dutch collector Nico Baaijens' " Calculating Machines - My Collection" site.
A fine and nicely presented collection of mechanical
calculating machines.
2/11/2006
Updated the Denon DEC-61A4
exhibit to include photos of some of the circuit boards in the machine.
1/18/2006
Added
Advertisement for the ill-fated Victor 3900 electronic calculator
to the Advertising & Documentation
Archive.
1/11/2006
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
1/10/2006
Updated the Sharp Compet 20 and
Sharp Compet 16 exhibits
to include additional information on introduction dates of numerous Sharp
calculators as kindly provided by Mr. Iwase and Mr. Kimiya of Sharp
Corporation in Japan.
1/7/2006
Updated the Wang 144T Scientific exhibit to clear up the mystery of the [LRN] button. Thanks go out
to Mr. Andrew Klesh, a former Wang employee, for writing to the museum
with the solution to this mystery.
1/2/2006
Added new exhibit: Canon 130S. Sincere thanks to Katie Wasserman for donation of this wonderful artifact to the Old Calculator Web Museum.
Updated the Thanks &
Acknowledgements page to include credit to a number of recent contributors
to the museum.
12/27/2005
Updated the Timeline of Calculator
History page in the Articles & Other
Information section to include information about Sharp Corporation being
honored by receiving an IEEE Milestone Award. This award was established by
the IEEE in 1983, and is awarded in recognition of outstanding
historical achievement in areas of electrical and electronic engineering.
See Sharp's Press Release for more information on this great honor bestowed to
Sharp Corporation.
11/13/2005
Added an early Product
Marketing Data-sheet for the
Friden EC-1115 calculator
to the Advertising & Documentation
Archive.
11/9/2005
Added Early Product
Marketing Data-sheet for the
Friden EC-1114 calculator
to the Advertising & Documentation
Archive.
10/15/2005
Added Product Spec. Sheet
for the Wang 701 Output Writer
to the Advertising & Documentation
Archive.
10/14/2005
Added new exhibit: Toshiba "TOSCAL" BC-1411. A debt is owed to Mr. George Kania for making it
possible for the museum to acquire this great artifact.
9/21/2005
Update to the Timeline of Calculator
History page in the Articles & Other
Information section.
9/18/2005
Added page to the Wanted
section for the Diehl Combitron.
Added page to the Wanted
section for the Philips P-251.
Special thanks to Martin Willemsen for the great photos of his machines.
Update to the Timeline of Calculator
History page in the Articles & Other
Information section.
9/10/2005
Added new exhibit: Wang 144T Scientific. Sincere thanks to my Mom & Dad for making the acquisition
of this rare machine possible.
Updated the Wang IC Reference Tech Note to include additional IC Part Numbers.
8/24/2005
Added new exhibit: Wang C-52 Advanced Scientific. Sincere thanks to Sean Meskill for donation of this machine to the Old Calculator Museum.
8/19/2005
Added cover of the
Preliminary Programmer's Guide for the Olivetti P602
to the Advertising & Documentation
Archive.
8/17/2005
Added Product Spec. Sheet
for the Wang 711 I/O Writer
to the Advertising & Documentation
Archive.
8/16/2005
Added Pre-introduction Advertisement for
the Wang 600-Series Desktop Electronic Calculators
to the Advertising & Documentation
Archive.
8/5/2005
Update to the Timeline of Calculator
History page in the Articles & Other
Information section to announce the death of Hiro Moyriyasu on
July 31. Mr. Moriyasu was a prolific engineer and skilled leader at Tektronix
for many years. He invented the concept of a digital storage oscilloscope; was
involved in the formation of the Tektronix calculator division with the acquisition of Cintra; a key player in the development of the groundbreaking
Tektronix 4051 desktop computer, which set IBM on its heels; and after his
tenure at Tektronix, forming two companies involved in high-tech development.
Mr. Moriyasu was 70 years old.
7/30/2005
Update to the Timeline of Calculator
History page in the Articles & Other
Information section, announcing the passing of Dr. Irwin Wunderman, founder
of Cintra, on July 27. (For more information, see the exhibit on the Cintra/Tektronix 909. The exhibit is now permanently dedicated to the memory of this brilliant man.
7/16/2005
Updated the FAQ
document in the Articles
section.
7/15/2005
Created a new page to document the on-going project to create the "brick and mortar" (actually, wood & nails) Old Calculator Museum. This is
a work-in-process, and will be updated from time to time as the project continues. The page is called The Old Calculator Physical Museum, and is hosted in the Articles & Other
Information section.
7/14/2005
Updated the
Cintra/Tektronix 909 exhibit with a couple of additional photos of Cintra's initial employees and the company's first headquarters.
7/8/2003
Updated the SCM/Marchant
Cogito 240SR exhibit to add a photo of one of the circuit boards in
the machine.
7/6/2005
Updated the Links page to include
a link to Takaharu Yoshida's Calculator Site. A nice site with some great machines, including a Busicom 141PF, and an extremely unusual Sharp Compet 16 with Itron display. Great photographs of the machines inside and out. Note that most text is Japanese, but some English is interspersed.
6/21/2005
Update to the Timeline of Calculator
History page in the Articles & Other
Information section, announcing the passing of Jack Kilby on 20-Jun-2005.
6/3/2005
Updated the Links page to correct the
link to Emil Dudek's Vintage Technology Website
5/10/2005
Minor updates to the Monroe 620 and
Monroe 650 exhibits.
Added a number of different early Sanyo calculators to the Wanted page.
5/6/2005
Updated the Links page to correct the
link to Alex Knight's Electronic Calculator History & Technology Museum
4/29/2005
Added advertisement for
the Victor 1800-Series Desktop Electronic Calculators
to the Advertising & Documentation
Archive.
4/23/2005
Major update to the
SCM 240SR exhibit to include a great deal of more information on
the story of Stan Frankel's calculator design, a connection with
Electrosolids Corp and the formation of Computron Corporation, and how
SCM ended up acquiring Computron and selling the calculator that had
been developed. Sincere thanks to Joseph Strick (President of Electrosolids)
for providing all of this information.
Updated the Links page to include
a link to Mark
Glusker's "Mechanical Calculating" site..
3/7/2004
Updated the Links page to include
a link to Ugo Mainieri's Collection of Calculating Tools.
3/4/2005
Update to the
Friden 1162 exhibit to add photo of inside of the Friden 116x-series
delay line.
2/23/2005
Added advertisement for
the Victor 4800 Programmable Desktop Electronic Calculator
to the Advertising & Documentation
Archive.
2/16/2005
Added page to the Wanted
section for the Data Acquisition
Corp. DAC-512. Sincere thanks
to Charles Falconer, the chief architect/designer of the machine, for
providing a great deal of information relating to this wonderful machine.
Added videos of two vintage television advertisements for the Sharp EL-8 to the
Advertising & Documentation Archive.
Warning - Videos are large (28 - 30 Megabytes, in MPEG-2 format), and are
hosted on my home server, so downloads may take a while. Videos are courtesy
the Perlinger Archives.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/6/2005
Added
schematic for
the power supply of Wang 200/300-Series Simultaneous
(210SE, 250SE, 320SE, 360SE) calculators to the
Wang 200/300-Series Logibloc
Inventory Tech Note.
1/22/2005
Update to the
Monroe 1860 exhibit to add scan of Monroe 1800-Series Mark Sense Program Card. Sincere thanks to Andrew M. Andrews III for donation of a large supply of these cards to the Old Calculator Web Museum.
1/19/2005
Added page to the Wanted
section for the Ricoh Ricomac 1200. Thanks
to Martin Willemsen for kindly providing the photo of his machine.
Some updates to the Commodore C112
exhibit, including addition of Spec Sheet.
1/14/2005
Added advertisement
to the Advertising & Documentation
Archive, touting the virtues of Monroe's customer service,
featuring a Monroe 740 calculator
tied to a customer service rep.
1/9/2005
Minor updates to the
Monroe 1860 exhibit.
12/29/2004
Updated the
Monroe 1920 exhibit to improve some photos, and add a photo of the
companion Statistical machine, the Monroe 1930, to the exhibit. Thanks
to Bernadette Fase for allowing use of the photo of the 1930.
Added front cover image of the
Olivetti Programma 101 General Reference Manual to the
Advertising & Documentation Archive
section.
11/26/2004
Updated the Links page to include
a link to Emil Dudek's Vintage Technology Calculator Page.
10/25/2004
Added front cover of Operating Instruction manual for the Monroe 1880 to the
Advertising & Documentation Archive section.
Added front cover of Programming Reference manual for the Monroe 1880 to the
Advertising & Documentation Archive section.
Thanks to Jeff Ritow for donation of these documents to the Old Calculator Web Museum.
Updated the Monroe 1860 exhibit
to include photo of second-design magnetic card.
Thanks to Jeff Ritow for
donation of an assortment of Monroe magnetic cards to the museum.
Added Friden 5005 Computyper
calculator to the Wanted page.
10/18/2004
Updated the
SCM 240SR exhibit to include more information on the magnetostrictive
delay line used in the machine.
10/15/2004
Updated the
SCM 240SR exhibit to remove information crediting Stanley Frankel
with the development of the MINIAC computer. This information turned
out to be incorrect. Sincere thanks to Mr. Steve Leibson for
his in-depth research on Mr. Frankel which clarified many aspects of
Frankel's work.
9/10/2004
Updated the
Victor 1800-1441 exhibit to include more detail regarding display
driver circuitry. Thanks to Godfrey Leggett for information about the
hybrid driver modules.
Various updates to the Thanks &
Acknowledgements page.
8/18/2004
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
8/15/2004
Added descriptive page to the Wanted
page for the NCR 18-16. Thanks
to John Kennedy for kindly providing the photo of his machine.
8/13/2004
Added advertisement for
Remington EDC-III to the
Advertising & Documentation Archive section.
8/11/2004
Added additional advertisement for
Toshiba BC-1411 to the
Advertising & Documentation Archive section.
8/3/2004
Updated the
Wang 700-Series Logibloc Inventory to include more board schematics.
Updated the
Wang 700-Series Architecture Document to include additional microcode
opcode information.
8/2/2004
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
8/1/2004
Added new exhibit: Sharp EL-160.
Purged entries >2 years old from this change log.
7/28/2004
Added Sharp Compet 662
calculator to the Wanted page.
7/25/2004
Added new exhibit: Victor 14-322.
7/5/2004
Added more detail to the
Sharp Compet 361
calculator in the Wanted page.
Added more detail to the
Sharp Compet 12
calculator in the Wanted page.
7/2/2004
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the
Sharp Compet 22 exhibit to include more detail regarding the introduction
date of the machine.
6/21/2004
Added the
Sperry Remington/Rand EDC-III
calculator to the Wanted page.
Thanks to Jan Roosen for allowing the museum to use his photo of this machine.
6/5/2004
Updated the Links page.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
5/27/2004
Updates to the Compucorp 140 exhibit to include information about the function of the "LEFT" and "RIGHT" keys. Thanks to Mr. Anders Classon for explaining the function of these previously
mysterious keys.
5/8/2004
Added the
Facit 1125
calculator to the Wanted page.
Thanks to Rainer Fredrich for providing the nice photo of this machine.
5/2/2004
Significant updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
4/24/2004
Added data-sheet for the
Cintra f(x) Repeater to the
Advertising & Documentation Archive
section.
4/22/2004
Updated the
Sharp Compet 363P exhibit with photos of magnetic card and storage sleeve.
Updated the Thanks &
Acknowledgements page to include Dr. Irwin Wunderman, founder and
President of Cintra.
4/19/2004
Added
Cintra Lease and Rental Terms document to the
Advertising & Documentation Archive
section.
Added
Cintra Scientist 909 advertisement to the
Advertising & Documentation Archive
section.
Added
Cintra 926 Programmer advertisement to the
Advertising & Documentation Archive
section.
Thanks to Irwin Wunderman for contributing copies of the original
Cintra advertisements from his archives.
4/15/2004
Added
Wang Sales Strategy document for the 100/500/600/700-Series
calculators to the
Advertising & Documentation Archive
section. Thanks to Dennis McNurland for contributing the scan of this
interesting document.
4/14/2004
Added image of front cover of
Wang "Field Facts" periodical to the
Wanted page.
Added image of front cover of
Wang "Field Facts" periodical to the
Advertising & Documentation Archive section. Thanks to Dennis McNurland for contributing the scan of the cover of this uncommon periodical.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
2/17/2004
Added cover of
Victor 14-321 Operator's Handbook to the
Advertising & Documentation Archive section.
2/16/2004
Updated the
Cintra/Tektronix 909 exhibit with additional information.
Added additional photo of the
Burroughs C7400 calculator to the
Wanted page. Thanks to Richard Brain for providing a nice photo
of his machine.
Museum News:For the next 12 to 14 months, the Old Calculator Web
Museum will see limited updates due the curator moving into temporary
quarters while awaiting the construction of a new home. All of the museum's
machines are in storage during this time. Once the new home
is completed, the museum will be moved into a 1800 sq. ft. heated/air conditioned
shop building which is currently serving as storage for all of our household
items (furniture, and many, many boxes of stuff) which will serve as a
physical museum, as well as the workshop for performing calculator restoration
and maintenance. For a period of time between February 5, 2004, and February
13, 2004, EMail directed to the museum bounced during the time the our
server was offline for the move. If you sent EMail to the museum during
this time, please resend your message.
1/16/2004
Added new Burroughs C-3000 Series Ad to the Advertising & Documentation Archive page.
Updated link to Shinichiro Osaki's Pocket Calculator Museum site on the
Links page.
1/3/2004
Added a photo for the
Busicom 207
calculator in the Wanted page.
Other various updates to the Wanted
page.
1/1/2004
Added a page for the
Uchida Yoko USAC 10B
calculator to the Wanted page.
More updates to the Burroughs C-3350 exhibit.
12/30/2003
Added a page for the
Casio AL-1000S
calculator to the Wanted page.
Updates to the Commodore AL-1000 exhibit to include vintage photo of AL-1000S calculator.
12/28/2003
Added the
Canon Canola 167, Casio 101P
and Busicom 141
calculators to the Wanted page.
Updates to the Sharp Compet 20 exhibit to include 1967 photos of Compet calculator assembly line, and assembly line power supply testing.
Updates to the Canon 161 exhibit to include 1967 photos of Canon electronic calculator factory final assembly & test area.
12/26/2003
Added the
NCM/Busicom 202
and Toshiba BC-1402 calculators to the
Wanted page.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
Updated the exhibit on the Burroughs
C-3350 exhibit to include more information on its relationship to the
Sharp Compet 32.
Numerous updates to various exhibit specification sheets.
Numerous updates to various pages in the Wanted section.
12/16/2003
Added new Toshiba BC-1412 Ad to the Advertising & Documentation Archive page.
12/14/2003
Added new Friden 130/132 Ad to the Advertising & Documentation Archive page.
12/12/2003
Added Wang 300-Series Price List to the Advertising & Documentation Archive page.
12/11/2003
Added Wang 300-Series Service Maintenance Program Price Sheet to the Advertising & Documentation Archive page.
12/7/2003
Added Wang 300-Series Electronic Calculators Brochure to the Advertising & Documentation Archive page.
Updated the
History of Compucorp essay in the
Articles & Documentation
section.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
12/1/2003
Added advertisement introducing three
new SCM/Marchant calculators, including the Cogito 240SR, to the Advertising & Documentation Archive page.
11/29/2003
Added advertisement for the Marchant Figuremaster to the Advertising & Documentation Archive page.
Many thanks to Michael Cain for donation of this vintage ad to the museum.
11/26/2003
Added Data Sheet for Busicom 2017/207 programmable electronic calculator to the Advertising & Documentation Archive page.
10/25/2003
Updated preview exhibit for the Mathatronics Mathatron 8-48MII to include additional photos.
11/24/2003
Added Flyer for Busicom 162C to the Advertising & Documentation Archive page.
11/19/2003
Added very early advertisement
for the
Friden 130
electronic calculator to the
Advertising & Documentation Archive section.
Updates to the Burroughs C-3660 exhibit.
Added Burroughs C-3660 Product Flyer to the Advertising & Documentation Archive page.
Sincere thanks to Mr. Thomas Roughton for donation of this teim to the museum.
11/14/2003
Added Mathatron 8-48M Information Sheet to the Advertising & Documentation Archive page.
11/13/2003
Added Ad Flyer for Mathatron III Calculator System to the
Advertising & Documentation Archive page.
Added Computers & Automation magazine March, '64 New Product Article to the
Advertising & Documentation Archive page.
Added Mathatronics, Inc. October, '64 Price List to the
Advertising & Documentation Archive page.
Thanks to the Charles Babbage Institute for providing copies of old Mathatronics materials in their archives.
11/12/2003
Added the
Busicom 162C to the
Wanted page.
Sincere thanks to Mr. Peter Broughton for providing the image of the 162C
11/3/2003
Updated the Wanted
page to add a number of additional machines the museum is seeking.
11/2/2003
Updated the NCR 18-2
exhibit to include information about machines OEM'd by NCR from Busicom.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section to include information on introduction
dates for some Busicom calculators.
10/31/2003
Added the Busicom 2017
/ 2017P to the Wanted page.
Updated the
History of Compucorp essay in the
Articles & Documentation
section, adding additional information about one of the calculators
designed by Wyle Labs for marketing by Busicom, the Busicom 2017.
Thanks to Mr. Peter Broughton for providing information and images
of the machines.
.
10/21/2003
Added cover of
Sharp Model CSA-12 "Memorizer 60" to the
Advertising & Documentation Archive section.
Added copy of
Sales Invoice for Sharp CSA-12 "Memorizer 60" to the
Advertising & Documentation Archive section.
10/4/2003
Added link to Dan Veeneman's Calculator Collection site to the
Links page.
10/2/2003
Added preview exhibit for new acquisition: Mathatronics Mathatron 8-48M
Added Sperry-Remington 663 to the calculator list. This
calculator came to the museum through a generous donation from Mr. Eli
Messenger of Oakland, CA. The exhibit for the machine will be forthcoming.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
9/24/2003
Coming Soon: Victor 1400-321. CRT Display calculator from
1970, utilizing small scale bipolar logic, and a couple of early MOS shift
register integrated circuits as recirculating working register storage.
9/10/2003
Updated the SCM/Marchant
Cogito 240SR exhibit to include information about Thomas Osborne's early
and short-lived involvement in the 240SR project at SCM.
9/4/2003
Updated the
Sharp Compet 22 exhibit to include a photo and additional information
about the Sharp CSA-12
Memorizer-60 accessory that could be connected to the Compet 22 to allow simple
learn-mode programming capabilities. Sincere thanks to Dick Rubenstein for
providing the photo of this device to the museum.
8/29/2003
Updated the
Sharp Compet 22 exhibit with additional information on the "Memorizer"
accessory that could be added to the Compet 22 to allow simple
learn-mode programming capabilities.
8/21/2003
Updated the
Cintra/Tektronix 909 exhibit with additional information. Re-did
Spec. Sheet for the machine in new format. Many thanks to Robert Krten for
providing a copy of the original Tek 909 reference manual.
8/19/2003
Added images of marketing flyer for the
MITS 1440 desktop calculator
to the Advertising & Documentation Archive section.
Added the Sharp Compet 12 (CS-12A) to the Wanted page.
8/13/2003
Updated the
Wang 700-Series Board Inventory to include the Wang 700C calculator.
8/5/2003
Added new exhibit: Toshiba BC-1211S.
7/30/2003
Added link to
Katie Wass' Calculator Manual Repository site to the
Links page.
7/10/2003
Updated the
Wang 700-Series Board Inventory to include schematics for a number
of the boards. Sincere thanks to Jim Battle for going to all the work
to find and scan these documents for the museum.
6/22/2003
Added "Coming Soon" exhibit: Toshiba BC-1211S.
6/18/2003
Added link to
Paulo Boselli's Conheça o Museu da Calculadora site to the
Links page.
Updated the Friden 130 exhibit
to include information and photos of another early Friden 130 circuit board
prototype. Sincere thanks to Dick Ahrens for donation of this artifact to the
museum.
6/17/2003
Added front cover of
Instruction Pamphlet for the Monroe 820A calculator to the
Advertising & Documentation Archive section.
6/12/2003
Added new exhibit: Friden 132.
6/8/2003
Added advertisement for the
Hewlett Packard HP 9100A to the
Advertising & Documentation Archive section.
6/6/2003
Added advertisement for
Victor 3900 to the
Advertising & Documentation Archive section.
6/3/2003
Updated the Friden 130 exhibit
to add photo of Friden 130 Playing Cards, an early marketing giveaway
to publicize the machine.
Profound thanks to Dick Ahrens for donating this wonderful artifact to
the museum.
4/29/2003
Added "Coming Soon" exhibit: Friden EC-132.
4/6/2003
Updated the
Brother Calther 412 exhibit to include additional photos, and improved
versions of earlier photos. Also some updates to the text of the exhibit.
4/2/2003
Added a
video of the Casio fx-1
calculator in operation.
3/29/2003
Updated the Thanks &
Acknowledgements page in to include Mr. Carlos Tomaszewski, and
Mr. Mark Paulin.
3/27/2003
Added
Hitachi KK471
to the Wanted section.
Many thanks to Mr. Steven Smith for providing the photo
of this machine.
3/20/2003
Updated the
Brother ProCal 514
page in the Wanted section to include a
photo. Many thanks to Mr. Charles Littell, III for providing the photo
of this interesting calculator.
3/20/2003
The Old Calculator Web Museum now has it's own domain,
"oldcalculatormuseum.com". Visitors can now use
http://oldcalculatormuseum.com
instead of the previous "http://www.geocities.com/oldcalculators"
as a means to access the site. The previous URL will continue to work
indefinitely, so there is no need to change bookmarks.
3/18/2003
Updated the
Tektronix Model 31 exhibit
to include some new photos.
3/17/2003
Added advertisement for
Toshiba BC-1411 to the
Advertising & Documentation Archive section.
Trimmed out entries older than one year old from this change log.
3/8/2003
Updated the
Sharp Compet 22 exhibit
to include information about the Sharp Compet 23.
Added the Sharp Compet 23
to the Wanted section.
Many thanks to Mr. Ramon On for providing a photo of his Compet 23.
Updates to the Timeline of Calculator
History page in the
Articles & Documentation
section.
3/4/2003
Updated the
Addo-X 9958
page in the Wanted section to include a
photo and some additional information. Many thanks to Mr. Andreas Zinn
for providing the photo of this great machine.
Updated the exhibit on the Burroughs
C-3350 exhibit to include a photo of the Addo-X 9958, which is
a very similar calculator marketed by Swedish company Addo-X as an OEM
customer of Sharp Corporation.
2/17/2003
Added new exhibit: Sony Sobax ICC-400W.
2/3/2003
Updated the
Casio 101
page in the Wanted section to include a
photo and some additional information. Many thanks to Mr. Gerhard Päselt
for providing the photo of this wonderful machine.
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
1/29/2003
Major re-work of the
History of Compucorp essay in the
Articles & Documentation
section, adding significant new information and photos
provided by principals involved in Computer Design Corporation. Profound
thanks to Mr. Carlos Tomaszewski and Mr. Norman Grannis for sharing their
memories.
Added "Videos" section to the
Articles & Documentation
section, providing an index to the various video clips of calculators in
operation.
1/28/2003
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
1/8/2003
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
1/3/2003
Minor updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
12/30/2002
Released an improved
video of the SCM/Marchant Cogito
240SR calculator in operation.
Added a
video of the Friden STW-10
electro-mechanical calculator in operation.
12/29/2002
Updated the Commodore AL-1000
exhibit to add information about the AL-1000S, a follow-on machine with
built-in I/O interface for an external I/O typewriter.
Updated the Sony ICC-500W exhibit to include
additional information on published performance specifications, as well as
information about external power options available for the first generation
Sony calculators.
Updated the Sony ICC-1500W exhibit to include
additional information on published performance specifications.
12/26/2002
Status update on the "Coming Soon" exhibit for the IME 86.
12/24/2002
Updated the "Coming Soon" exhibit for the Olivetti Programma 101 to include additional photos.
12/21/2002
Added new exhibit: Singer/Friden EC1116.
Updated the "Coming Soon" exhibit for the Olivetti Programma 101 to include additional photos.
12/14/2002
Updated the Casio AL-2000
exhibit to include information on Commodore & Remington OEM sales of
this calculator.
Added link to
John Wolff's Calculating Machine Web Museum site to the
Links page.
12/9/2002
Added link to
Daniel Sancho's Evolution of Calculating Technology website to the
Links page.
Updated the "Coming Soon" exhibit for the Olivetti Programma 101.
12/6/2002
Updated
Tech Note for
the Wang 700-Series calculator LogiBloc Inventory to include
additional boards.
11/27/2002
Added
Tech Note for
the Wang 200/300-Series calculators that includes an inventory of the
LogiBlocs used in 200 & 300-series calculators, and their function.
11/24/2002
Added
Tech Note for
the Wang 700-Series calculators that includes an inventory of the
circuit boards used in 700-series calculators, and their function.
Added Front Cover of Operator's Guide
for the Texas Instruments TI-3500
to the Advertising & Documentation Archive section.
Added Wang Labs Maintenance Contract Sticker to the Advertising & Documentation Archive section.
11/16/2002
Added coming soon exhibit: Olivetti Programma 101
11/15/2002
Added coming soon exhibit: Singer/Friden EC-1116.
Removed Singer/Friden EC-1116 from Wanted page.
Updated the Bohn Omnitrex-8
exhibit to include information on color theme variations on models of
this calculator.
11/13/2002
Updated link to Frank Boehm's "elektron" site in the Links section.
11/12/2002
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
11/4/2002
Added "Coming Soon" exhibit: Sanyo ICC-1122.
Special thanks to Katie Wasserman for donation of this calculator to the museum.
Updates to the Timeline of Calculator History page in the Articles & Documentation section.
11/3/2002
Added new exhibit: Friden 1117.
Updated the Wang 720C exhibit.
10/28/2002
Updated the FAQ
document in the Articles
section.
10/19/2002
Added cover of
Wang 700A Reference Manual to the
Advertising & Documentation Archive section.
10/17/2002
Added "Coming Soon" exhibit: Wang 700A Advanced Programming Calculator.
Special thanks to Mr. Bob Shedd of
Kadant Web Systems, Inc. for donation of this calculator to the museum.
10/12/2002
Added "Coming Soon" exhibit: Monroe 630.
Special thanks to John Woldstad for donation of this calculator to the museum.
10/11/2002
Added
Tech Note for
the Wang 720C to include
information on Wang 700-series calculator architecture and microcode
structure.
10/7/2002
Added "Coming Soon" calculator: Sanyo ICC-0081 "Mini Calculator".
10/2/2002
Updated the Wang 370
page in the Wanted section to include an additional
photo, and to conform with the new Wanted page formatting.
Updated the Wang 380 page in
the Wanted section to include
an additional photo.
10/1/2002
Added advertisement for late '50's Late '50's Monroe Calculator to the
Advertising & Documentation Archive section.
Updates to the Links Page.
Updated the Tech Notes for
the Wang 360SE to include
information on transistor part numbers.
9/29/2002
Added the Logicon "Computer" to the
Wanted Page. Special thanks
to Dr. Norman Martin, the inventor of this purpose-built programmable
calculator to assist engineering computations at Logicon, Inc., for the
use of this photo, and providing information about this wonderful machine.
With the help of Dr. Martin, I am putting together an essay about this
machine. While it was never marketed as a commercial product, this machine
still holds a place in the history of desktop electronic calculating machines.
9/25/2002
Added a new story to the "Recollections & Reflections"
section of the Articles & Documentation
page, about the life and times of a long-time Friden employee, Mr. Dick
Ahrens. Ahrens was involved in the early days of electronic calculators at
Friden. His story outlines
the early days of Mr. Ahrens' employment at Friden, and highlights
some of his memories of the development, and the people behind the development,
of Friden's first electronic calculators. Heartfelt thanks to Dick for
sharing this wonderful story!
9/24/2002
Added "Coming Soon" exhibit: Sony ICC-400W.
9/22/2002
Added new "Tech Notes"
page documenting Wang Laboratories internal Integrated Circuit part
numbers.
Links to this page can be found in the Spec Sheets for the
Wang 720C and
Wang 600 calculator exhibits,
as well as in the index of Tech Notes in the Calculator Technology section of the
Articles and Documentation
page of the museum.
Profound thanks to Mr. Dennis McNurland for donating the
document that provided the source for this information.
9/21/2002
Numerous updates to the
Wanted page.
9/15/2002
Added Rockwell Calculator Line
Advertisement to the Advertising & Documentation
Archive section.
9/14/2002
Added new "Tech Notes"
page for outlining the Compucorp HTL Chip set Microcode Instruction Set.
Links to this page can be found in the individual calculator exhibits
and Spec. Sheets for said exhibits (including the
Monroe 1665 and
Compucorp 120, and others), as well as the article
The History of Compucorp
in the
Articles and Documentation
section of the museum.
9/10/2002
Added new exhibit: Canon Canola 164P.
9/4/2002
Added coming soon exhibit: TI Exactra 31.
8/28/2002
Updated the History of Compucorp
article in the
Articles & Documentation section. Added
photo of Compucorp 155 Surveyor. Thanks to Bob Smillie for providing this photo.
Added Compucorp 155 to the
Wanted Page
8/27/2002
Updated the Friden 1152 exhibit
to add photo of the "Olive" front panel insert.
8/25/2002
Added a wonderful new story in the "Recollections & Reflections"
section of the
Articles & Documentation
page. This story outlines
the early days of Dennis McNurland's employment at Wang Laboratories as a
product service technician. Sincere thanks to Dennis for sharing his
great story!
8/20/2002
Added "Coming Soon" exhibit: Canon Canola 164P.
Added "Coming Soon" exhibit: Lago Calc LC 119.
8/15/2002
Updates to the Timeline of Calculator
History page in the Articles & Other
Information section.
8/14/2002
Added Victor 1800-1721 to the
Wanted page. Special thanks to John Maus for
the images and information about his machine.
8/12/2002
Updated the
Brother Calther 412 exhibit.
8/11/2002
Updated the Friden 1152 exhibit
to include information about varying color front panels.
Updated the Sharp Compet 22 exhibit to add
information about Facit's OEM version of the Compet 22, the Facit 1124.
Numerous additions to the Wanted page.
8/6/2002
Added Hitachi KK-461 to the
Wanted page.
Added photo of the Hitachi KK-461 to the exhibit on the
Friden 1118. Thanks to Emil Dudek for the
photo of the Hitachi KK-461.
Added "Coming Soon" exhibit: Olympia CD-200
Updates to the Timeline of Calculator History
page in the Articles & Documentation section.