National Semiconductor 750 Handheld Electronic Calculator

This handheld electronic calculator has a brown plastic case with a two-tone keyboard and seventeen rectangular plastic keys. In addition to ten digit keys and a decimal point key, it has a clear entry/clear key, four arithmetic function keys, and a total key. On the left on the brown and off-white keyboard is an on/off switch. Text above it reads: 750 National (/) Semiconductor. Behind the keyboard is a six-digit LED display.
A compartment for a battery is at the top of the back. A sticker near the bottom of the back reads: Made in Hong Kong.
A jack for a power adapter is on the left side.
Problems are entered using algebraic rather than reverse Polish notation.
The calculator has a black plastic carrying case.
Compare to the earlier Novus 650 (1986.988.260 – no floating decimal point, reverse Polish notation) and to the contemporary Novus 850 (1986.0988.306 – eight-digit display). Also compare to the Novus 750 (1986.0988.224).
[Advertisement], Hamilton, Ohio, Journal News, October 24, 1976, p. 102. Lists National Semiconductor 750 as on sale for $5.90
[Advertisement], Grand Prairie Daily News, November 27, 1977, p. 18. National Semiconductor 750 calculator on sale for $4.99
[Advertisement], Chicago Tribune, March 2, 1978, p. H3. National Semiconductor 750 selling for $4.99, regularly $6.99.
Currently not on view
Object Name
electronic calculator
date made
National Semiconductor Corporation
Physical Description
plastic (case; keys; display cover; carrying pouch material)
metal (circuitry material)
overall: 1 in x 2 1/2 in x 5 in; 2.54 cm x 6.35 cm x 12.7 cm
place made
Zhonghua: Hong Kong
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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