National Semiconductor 835 Handheld Electronic Calculator

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This handheld electronic calculator has a dark brown plastic case and twenty-three rectangular plastic keys. These include ten digit keys, a clear entry/clear key, a decimal point key, four arithmetic function keys, a total key, four memory keys, a % key, and a square root key. Left of the top row of keys is an on/off switch. A mark above it reads: 835. A mark to the right of this mark reads: National (/) Semiconductor.
Behind the keyboard is an eight-digit LED display. A jack for an adapter is on the left side. The back of the calculator has a compartment for a battery. Text at the bottom of the back reads: MADE IN HONG KONG.
Compare to Novus 835 (1986.0988.276), which was also made by National Semiconductor. Also see the National Semiconductor 835A (1986.0988.230).
[Advertisement], Chicago Tribune, August 28, 1977, p. U1_1. Refers to an 835 calculator by National Semiconductor. Color scheme is of the National Semiconductor 835, not the Novus 835.
[Advertisement], Chicago Tribune, March 9, 1980, p. W_A15. The add lists the calculator as an $8.95 value on sale for $3.99. The keyboard shown is all one color.
Currently not on view
date made
National Semiconductor Corporation
place made
Zhonghua: Hong Kong
Physical Description
plastic (keys; case material)
metal (circuitry material)
overall: 7/8 in x 2 5/8 in x 5 1/2 in; 2.2225 cm x 6.6675 cm x 13.97 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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