NCR Class 18-22 Electronic Calculator


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.

Date Made: ca 1972

Maker: Nippon Electric Co.

Location: Currently not on view

Place Made: Japan

Subject: Business


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


Exhibition Location:

Data Source: National Museum of American History

Id Number: 1987.0339.01Accession Number: 1987.0339Catalog Number: 1987.0339.01

Object Name: calculatorelectronic calculator

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


Record Id: nmah_1396777

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