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Specifications for Victor 4900

Manufacturer: Victor Comptometer Corp., Business Machines Group
Model Number: 4900
Introduced: January, 1976
Serial Number: Two Units in Museum
#1: 6025-944 [Exhibited Machine]
#2: 5322-494
Date of Manufacture: #1: Early 1980 [Exhibited Machine]
#2: 1978
Manufactured In: USA, Chicago, IL
Original Price: $2,195
Weight: 24 Pounds
Size: 12 3/8" Wide, 15 1/2" Deep, 6 5/8" High
Power Requirement: 115V AC, 50/60 Hz
Display Technology: Dot Matrix (5x7 font) 7-Pin Impact Printer, 120CPS
Logic Technology: First-Generation Rockwell PPS-4 Microprocessor Family
Digits of Capacity: 14
Decimal Modes: Fixed(0 to 9 behind decimal) & Floating (up to 13 behind decimal)
Arithmetic Logic: Arithmetic
Math Functions: Four Function, plus Percent & Square Root
Advanced Math Functions accessed by [PR/F] key
Trig and Inverse Trig
ex, Base 10 & e Logarithm
Reciprocal (1/x), π
Date Calculation
Other as-yet unidentified functions
Constant: Automatic on all four functions
Memories: Two basic memories, w/add & subtract function keys
[=+] and [=-] keys to add/subtract products/quotients to/from memory
Programmable: 1720 Program Step Memory
Conditional Branching (+,-,<,>,=)
Subroutine Capability
Tagged and Direct Address Branching
Direct and Indirect Memory Addressing
Program List and Trace Functionality
Notes: Unusual [∩] key for setting roundoff digit position

Previous Machine: Hewlett Packard HP-01
Next Machine: Rockwell 960

Related Machines: Victor 1800-1441
Victor 14-322
Victor MEC/225

Reading: Victor 4900 Operator Manual
Victor 4900 Programmers Manual

Back to Exhibit
Back to Calculator List

Sincere thanks to Mrs. Marilyn Nelson for the donation of her father's Victor 4900 calculators, magnetic cards, and dust cover
Grateful thanks to Baker & Fuller, PA, Certified Public Accountants, Orlando, FL, for donation of Victor 4900 Magnetic Cards and Sleeves formerly used in their practice

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