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.

Date Made: 1976-1978

Maker: National Semiconductor Corporation

Location: Currently not on view

Place Made: China: Hong Kong

See more items in: Medicine and Science: Computers, Computers & Business Machines, Handheld Electronic Calculators


Exhibition Location:

Credit Line: Gift of John B. Priser

Data Source: National Museum of American History

Id Number: 1986.0988.231Catalog Number: 1986.0988.231Accession Number: 1986.0988

Object Name: electronic calculator

Physical Description: plastic (case; keys; display cover; carrying pouch material)metal (circuitry material)Measurements: overall: 1 in x 2 1/2 in x 5 in; 2.54 cm x 6.35 cm x 12.7 cm


Record Id: nmah_1305761

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