Commodore MM2SR Handheld Electronic Calculator

Description:

This chunky handheld electronic calculator has twenty-three oval plastic keys. At the center is an array of ten digit keys with a decimal point key and a subtraction key. To the right of these are keys for multiplication, division, addition, and total. Left of the digit keys are memory, percent, clear entry, and clear keys. The row of keys at the top of the keyboard has square root, inverse, and squaring keys. The on/off switch is right of these. A mark behind the keyboard reads: commodore. Behind this is an eight-digit LED display. A socket for a power adapter is on the back edge.

The back of the calculator has a sticker with an “operating outline.” It reads in part: Model MM2SR (/) Voltage: 6V (/) Current: .2A. It also reads: Serial No. 021926. It also reads: Commodore Business Machines Inc. Made in USA.

Compare 1986.0988.100.

References:

Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 58.

Los Angeles Times, October 24, 1974, p. A7. Calculator sells for $49.95.

Date Made: ca 1974

Maker: Commodore Business Machines, Inc.

Location: Currently not on view

Place Made: United States

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

Exhibition:

Exhibition Location:

Credit Line: Gift of John B. Priser

Data Source: National Museum of American History

Id Number: 1986.0988.128Accession Number: 1986.0988Catalog Number: 1986.0988.128

Object Name: electronic calculatorOther Terms: electronic calculator; Handheld

Physical Description: plastic (case; keys; display cover material)metal (circuitry material)glass (tube material)Measurements: overall: 1 1/4 in x 3 1/4 in x 6 in; 3.175 cm x 8.255 cm x 15.24 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ae-1c8d-704b-e053-15f76fa0b4fa

Record Id: nmah_334542

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