Rockwell 8R Handheld Electronic Calculator

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This handheld electronic calculator has a dark brown plastic case and eighteen rounded 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, a total key, and a percentage key. A mark above the keyboard reads: Automatic (/) Percent. The on/off switch is on the left side. Behind the keyboard is an eight-digit LED display. Text behind the display reads: Rockwell. A jack along the back edge would hold a power adapter.
The back of the calculator has four feet and a compartment at the top for a nine volt battery. A sticker below this gives operating examples. Text near the bottom reads: Rockwell (/) International Microelectronics Product Division (/) Anaheim, CA 92803 (/) Calculator Model 8R (/) Made in Hong Kong Mod [sic].
Compare the Rockwell 14RD (1986.0988.013) and the Rockwell 9TR (1986.0988.015). Also compare the Radio Shack EC-220 (1986.0988.038).
[Advertisement], Los Angeles Times, August 14, 1975, p. SF4. Rockwell 8R advertised as selling for $16.88.
[Advertisement], Chicago Tribune, December 4, 1975, p. A6. Rockwell 8R advertised as selling for $16.88.
[Advertisement], Los Angeles Times, December 18, 1976, p. C10. Rockwell 8R advertised as regularly priced at $14.88, selling for $8.95.
[Advertisement], Washington Post, February 11, 1977, p. C24. Rockwell 8R advertised as selling for $6.77.
Currently not on view
date made
Rockwell International
place made
Zhonghua: Hong Kong
Physical Description
plastic (case; keys; display cover material)
metal (circuitry material)
paper (sticker material)
overall: 1 in x 3 in x 6 in; 2.54 cm x 7.62 cm x 15.24 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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