NCR Class 18-22 Electronic Calculator

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Description
In the late 1960s and 1970s, desktop electronic calculators replaced mechanical adding and calculating machines. The Nippon Calculating Machine Corporation of Japan sold such machines under the brand name Busicom. It also supplied other firms with electronic calculators sold under other names. This is a Busicom electronic calculator sold by the Dayton, Ohio, firm of NCR.
The machine has nine digit keys and a 0 bar. Clear and clear entry keys are left of the digit keys. Keys to the right of the digit keys are for the four arithmetic operations and memory access. Apparently nine or ten digit numbers may be entered, with results of up to twelve digits.
A tag attached at the top reads: NCR. A tag attached to the back reads; NCR (/) Class 18-22. It also reads: THE NATIONAL CASH REGISTER COMPANY. (/) MADE IN JAPAN. It also reads: NO. 1-9940221. This serial number indicates a date of 1972.
Location
Currently not on view
date made
ca 1972
maker
Nippon Electric Co.
place made
Nihon
Physical Description
plastic (case, keys material)
rubber (cord material)
metal (base material)
Measurements
overall: 3 in x 8 7/8 in x 11 in; 7.62 cm x 22.5425 cm x 27.94 cm
ID Number
1987.0339.01
accession number
1987.0339
catalog number
1987.0339.01
subject
Business
See more items in
Medicine and Science: Computers
Desktop Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History, Kenneth E. Behring Center

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