Toshiba LC-833wa Handheld Electronic Calculator

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This handheld electronic calculator also serves as an alarm clock. It has an aluminum case with plastic trim and an array of twenty-five rectangular plastic keys. These include ten digit keys, a decimal point key, a total key, four arithmetic function keys, four memory keys, a square root key, a percentage key, a change sign key, a clear key, and a clear entry key. Above the keys are an on/off switch and a switch for setting the alarm. Behind this are six buttons that relate to setting the time. Behind this is an eight-digit liquid crystal display. Below the keys a mark reads: LIQUID CRYSTAL CALCULATOR LC-833WA (/) TOSHIBA.
A sticker on the back of the calculator reads: TOSHIBA ELECTRONIC CALCULATOR (/) LC-833WA (/) SILVER OXIDE BATTERY. It also reads: NO. D 57903 BM (/)TOKYO SHIBAURA ELECTRIC CO., LTD. JAPAN.
The calculator has a brown plastic case with a window that reveals the display. A mark on the case reads: TOSHIBA.
According to the website, accessed December 3, 2014, this calculator was in production in 1978. According to the website, accessed December 3, 2014, this calculator was introduced in 1978.
[Advertisement], Los Angeles Times, November 24, 1979, p. D5. This ad shows the LC-840WA, which appears to be a slightly later model.
Currently not on view
date made
ca 1978
Tokyo Shibaura Electric Company
place made
Physical Description
metal (case material)
plastic (trim; keys; carrying pouch; buttons material)
glass (cisplay material)
overall: 3/8 in x 2 3/4 in x 5 1/4 in; .9525 cm x 6.985 cm x 13.335 cm
ID Number
accession number
catalog 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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