Commodore 796M Handheld Electronic Calculator

This inexpensive handheld electronic calculator has a black plastic case. It has an array of nineteen oval plastic keys. In addition to ten digit keys, four arithmetic functions keys, a decimal point key, a total key, and a clear/clear entry key, the device has a memory key and a percentage key. The on/off switch is left of the memory key and the outlet for a power adapter is on the left side. A mark behind the keyboard reads: commodore. Behind this is the red eight-digit light-emitting diode display.
The back of the calculator has a compartment for a nine-volt battery. The cover is missing. A sticker below this reads:
Solid State Portable (/) Electronic Calculator (/) AC OPERATION Use Commodore (/) adapter no. DC-620R or 505 or 506 or 507 (/) BATTERY 9V Type 006P SERIAL NO. (/) 647752 (/) MODEL 796M. Further text reads: commodore (/) Made in England Pt No 200958-3.
According to Devidts, this calculator came in beige, black, and blue. For the beige version, see 1986.0988.061.
Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 56. They give a date of 1973.
Serge Devidts, BE CALC Vintage Electronic Calculators website.
Currently not on view
Object Name
electronic calculator
date made
ca 1976
Commodore Business Machines, Inc.
Physical Description
plastic (case; keys; display cover material)
metal (circuitry material)
glass (tube material)
paper (sticker material)
overall: 7/8 in x 2 1/4 in x 5 1/4 in; 2.2225 cm x 5.715 cm x 13.335 cm
place made
United Kingdom: England
ID Number
catalog number
accession number
Handheld Electronic Calculators
Computers & Business Machines
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of John B. Priser
Additional Media

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