Unisonic LC-200 Handheld Electronic Calculator

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This compact, thin handheld electronic calculator has a gold and brown colored metal case and an array of twenty-four rectangular plastic keys. These include ten digit keys, four arithmetic function keys, a decimal point key, and a total key. The calculator also has three memory keys and change sign, square root, percentage, clear entry, and clear keys. The on/off switch is on the left in the top row of keys.
Behind the keyboard a mark reads: LC-200. Behind it is an eight-digit LCD display. Below the keyboard a mark reads: Unisonic.
A mark on the back of the calculator reads: Unisonic LC-200 (/) SILVER OXIDE BATTERY (/) 1.5V x 2 PCS 0.00025W (/) MADE IN TAIWAN. Unscrewing two screws at the bottom of the case reveals a green plastic circuit board and two batteries below it. A mark on the board reads: Santron.
Compare 1986.0988.121.
For information about Unisonic, see 1986.0988.371.
[Advertisement], Chicago Tribune, January 4, 1979, p. I8. On sale for $12.99. Price includes case (no case with this example). The placement of the marks and coloring of the calculator shown in the advertisement is more like 1986.0988.121 than this calculator.
Currently not on view
date made
ca 1980
place made
Physical Description
plastic (keys; circuit board material)
metal (case material)
glass (display material)
overall: 1/4 in x 2 1/2 in x 4 1/4 in; .635 cm x 6.35 cm x 10.795 cm
ID Number
catalog number
accession number
Credit Line
Gift of John B. Priser
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History


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