Unisonic 1148 Handheld Electronic Calculator

This handheld electronic calculator has a metal and plastic case with an array of twenty-six rectangular plastic keys. These include ten digit keys, a decimal point key, a total key, four arithmetic function keys, and four memory keys. In addition there are two parenthesis keys, a square root key, a percentage key, a clear/clear entry key, an inverse key, and a squaring key. On the right side next to the two topmost keys is the on/off switch. A mark above this reads: Unisonic 1148.
A jack for a power supply is along the back edge.
A sticker on the back of the calculator gives calculation examples. It is marked in part: SERIAL NO. (/) 001202 (/) MADE IN JAPAN. A further mark reads: 1148-A. Below this is a compartment for three AA batteries.
No advertisements found.
The BECALC vintage calculator website dates the Unisonic 1148 calculator to 1979.
Currently not on view
Object Name
electronic calculator
date made
ca 1979
Physical Description
plastic (case; display cover; keys material)
paper (sticker material)
metal (keyboard; trim; circuitry material)
overall: 7/8 in x 2 3/4 in x 4 3/4 in; 2.2225 cm x 6.985 cm x 12.065 cm
place made
ID Number
catalog number
accession number
Computers & Business Machines
Handheld Electronic Calculators
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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