Object Details
maker
Commodore Business Machines, Inc.
Description
This small four-function calculator is wedge-shaped, inclining toward the front. It has fourteen oval keys and an oval zero bar. In addition to the ten digits, these allow for the four arithmetic operations and clearing (but not clear entry). Each arithmetic function key serves as an enter key for the corresponding operation (e.g. pushing the appropriate key gives the product, result, difference, quotient, or sum). The calculator has a six-digit red LED display.
A mark between the keyboard and the display reads: commodore. A switch on the back edge allows one to set the display to read dollars and cents (there is no decimal point key).
The battery compartment at the top of the back would hold a nine-volt battery. A sticker in front of it reads: MINUTEMAN * 6 (/) VOLTAGE 9V CURRENT 0.08A (/) SERIAL NO. 377139 (/) MADE IN U.S.A.
References:
Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 58.
Washington Post, April 14, 1974, p. C8. Advertised as a “basic low-priced machine.” Sold for $19.95.
Chicago Tribune, February 2, 1975, p. 35. Advertised as selling for $12.88, value $19.95.
Location
Currently not on view
Credit Line
Gift of John B. Priser
date made
1974-1975
ID Number
1986.0988.313
catalog number
1986.0988.313
accession number
1986.0988
Object Name
electronic calculator
Physical Description
plastic (case; keys; display cover material)
glass (tube material)
metal (circuitry material)
Measurements
overall: 1 1/2 in x 2 1/2 in x 3 5/8 in; 3.81 cm x 6.35 cm x 9.2075 cm
place made
United States
See more items in
Medicine and Science: Computers
Computers & Business Machines
Handheld Electronic Calculators
Data Source
National Museum of American History
Link to Original Record
Record ID
nmah_1363539