Specifications for SCM Cogito 240SR

Manufacturer: SCM Corporation (Smith Corona/Marchant)
Model Number: 609991 (Cogito 240SR)
Serial Number: Two Units in Museum
#1: 2178
#2: 1677
Date of Manufacture: 1966
Manufactured In: USA, Oakland, California
Original Price: $1,473 (Mid 1968), Probably >$2,000 at introduction
Weight: 39 Pounds
Size: 19" Deep, 13 1/2" Wide, 10 1/2" High
Power Requirement: 95 Watts, 115VAC 60Hz
Display Technology: CRT Display, 7-Segment Rendition, 4-row/3-register display
Logic Technology: Discrete Transistor
480-bit acoustic delay line register storage
Digits of Capacity: 24 for results, 12 for entry.
Decimal Modes: Automatic Floating Decimal
Arithmetic Logic: Arithmetic. Separate X= and ÷= keys to complete multiply and divide
Math Functions: Four Function w/semi-automatic Square Root
Constant: Automatic for Addition and Subtraction
Memories: 3. Surrogate registers for each of three working registers
Notes: SCM's First All-Electronic Calculator
Original design by Stanley Frankel

Previous Machine: Wang LOCI-2
Next Machine: Toshiba BC-1411

Related Machines: SCM Cogito 412
SCM Cogito 414

News: Announcing the SCM Cogito 240 and 240SR Calculators

Literature: Cover of Cogito 240SR Operator's Guide [39K]

Video: 240SR In Operation [5MB, .MPG (MPEG-2) Format]

Advertising: Cogito won't throw you a curve... [270K]
If you didn't talk with a Marchant man... [92K]
You wouldn't think one electronic calculator... [83K]
PRESENTING THE NEW MARCHANT... [736K] [PDF]

Back to Exhibit
Back to Calculator List

Copyright ©1997-2011, Rick Bensene.