Texas Instruments One-Chip Calculator (Microprocessor)

The “calculator-on-a-chip” is a metal oxide semiconductor (MOS) integrated circuit announced by Texas Instruments in September of 1971. A variation was sold in the early handheld electronic calculators of companies like Bowmar, as well as in TI's first portable calculator, the Datamath, introduced in September, 1972.
According to a press release issued at the time of the donation in 1975, the device provided the equivalent of some six thousand transistors.
Compare 1987.0487.233.
Accession file.
Online Datamath Museum, accessed June 19, 2015
Online NMAH Chip site, accessed June 19, 2015.
Currently not on view
Object Name
electronic calculator
date made
Texas Instruments
Physical Description
metal (circuitry material)
ceramic (base material)
overall: 9.9 cm x 4 cm x 2 cm; 3 7/8 in x 1 9/16 in x 13/16 in
place made
United States: Texas, Dallas
ID Number
accession number
catalog 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 Texas Instruments
Additional Media

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