National Semiconductor Novus 831 Handheld Electronic Calculator

This handheld electronic calculator has a tan plastic case with a tan and brown keyboard. Its capabilities are suited to student use, including not only the four functions of arithmetic but square roots, squares, and percentages. In addition to keys for these, the calculator has ten rectangular digit keys, a clear entry/clear key, a decimal point key, and a total key. The on/off switch is above these keys. Text above this reads: 831 NOVUS. Behind this is an eight-digit LED display. A jack for a power adapter is on the left side.
The battery compartment opens from the back.
Advertisements for the Novus 831 give a list price of $10.88 and a sale price of $9.44.
[Advertisement], Chicago Tribune, April 4, 1976, Novus 831 calculator sold for $9.44.
[Advertisement], Chicago Tribune, September 19, 1976, p. L16. Novus 831 calculator sold for $9.44, regularly $10.88.
[Advertisement], Chicago Tribune, December 19, 1976, p. O4. Novus 831 calculator sold for $6.88, regularly $9.88.
[Advertisement], Ogden Standard-Examiner, June 14, 1977, p. 3. Novus 831 offered as giveaway for bank depositors.
Currently not on view
date made
National Semiconductor Corporation
place made
United States
Physical Description
plastic (case; keys; display cover material)
metal (circuitry material)
overall: 1 in x 2 1/2 in x 5 1/2 in; 2.54 cm x 6.35 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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