Object Details
maker
Eiko Business Machine Company
Description
This handheld electronic calculator has a black and white plastic case and an array of twenty-two square plastic keys. The keys are colored red, white, and blue, on a larger black base. They include ten digit keys, a decimal point key, a total key, four arithmetic function keys, four memory keys, a percentage key and a clear key. Left of the top two keys is an on/off switch. Behind this is an eight-digit green vacuum fluorescent display. A mark behind this reads: UNITREX (/) 901M.
An opening for a power jack is along the back edge.
A compartment at the top of the back of the calculator holds two AA batteries. A sticker below this reads in part: UNITREX (/) electronic calculator. It also reads in part: MADE IN KOREA (/) UNITREX OF U.S.A. (/) SER. NO. 5716157.
Reference:
[Advertisement], Chicago Tribune, August 29, 1976, p. S_A6. Unitrex 901M on sale for $12.95.
Location
Currently not on view
Credit Line
Gift of John B. Priser
date made
ca 1976
ID Number
1986.0988.244
catalog number
1986.0988.244
accession number
1986.0988
Object Name
electronic calculator
Physical Description
plastic (case; keys material)
metal (circuitry material)
glass (display material)
Measurements
overall: 7/8 in x 3 in x 5 1/4 in; 2.2225 cm x 7.62 cm x 13.335 cm
place made
Korea
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_1305774