Commodore MM2SR Handheld Electronic Calculator
date: label: date made
content: ca 1974
name: label: maker
content: Commodore Business Machines, Inc.
notes: label: Description
content: 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, percentage, 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.
label: Description
content: 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. 140626. It also reads: Commodore Business Machines Inc. Made in USA.
label: Description
content: Compare 1986.0988.128.
label: Description
content: References:
label: Description
content: Guy Ball and Bruce Flamm, <I>The Complete Collector’s Guide to Pocket Calculators</I>, Tustin, CA: Wilson/Barnett, 1997, p. 58.
label: Description
content: <I>Los Angeles Times</I>, October 24, 1974, p. A7. Calculator sells for $49.95.
label: Location
content: Currently not on view
place: label: place made
content: United States
setName: label: See more items in
content: Medicine and Science: Computers
label: See more items in
content: Computers & Business Machines
label: See more items in
content: Handheld Electronic Calculators
creditLine: label: Credit Line
content: Gift of John B. Priser
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1986.0988.100
label: catalog number
content: 1986.0988.100
label: accession number
content: 1986.0988
objectType: label: Object Name
content: electronic calculator
label: Other Terms
content: electronic calculator; Handheld
physicalDescription: label: Physical Description
content: plastic (case; keys; display cover material)
label: Physical Description
content: metal (circuitry material)
label: Physical Description
content: glass (tube material)
label: Measurements
content: overall: 1 1/4 in x 3 1/2 in x 6 in; 3.175 cm x 8.89 cm x 15.24 cm