APF Mark 84 Handheld Electronic Calculator
date: label: date made
content: ca 1977
name: label: maker
content: APF Electronics
notes: label: Description
content: This handheld electronic calculator has an array of ten white digit keys with a white decimal point key. Right of the digit keys are orange keys for the four aithmetic functions, which also can serve as memory keys. An orange equals/constant key, which can also serve as a memory key, is next to the decimal point key. The top row has keys for percentage, clear entry/clear, and memory. The row also contains an on/off switch. Behind the keyboard is an eight-digit (or possibly nine-digit) fluorescent display. A mark at the back reads: aPF MARK 84. The hole for the adapter is on the right side.
label: Description
content: The back of the calculator has a compartment for the battery at the top and two rubber feet at the bottom. A mark on the interior of the battery back reads: 2 (/) JAPAN (/) 0108241. A silver-colored sticker on the back reads: aPF ELECTRONICS, INC. (/) MODEL NO. MARK 84 (/) D.C. 9.0 VOLTS (/) CAUTION: Use only optional (/) A. C. adaptor model 710 or (/) 751S to operate on A. C. (/) SERIAL No: J 0119684 (/) MADE IN JAPAN.
label: Description
content: This calculator closely resembles an APF calculator advertised in a March 1977, issue of the <I>Los Angeles Times</I> as selling for $7.99. That advertisement does not give a model number.
label: Description
content: Reference:
label: Description
content: <I>Los Angeles Times</I>, March 19, 1977, p. 15.
label: Location
content: Currently not on view
place: label: place made
content: Japan
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: 1986.0988.175
label: accession number
content: 1986.0988
label: catalog number
content: 1986.0988.175
objectType: label: Object Name
content: electronic calculator
label: Other Terms
content: electronic calculator; Handheld
physicalDescription: label: Physical Description
content: plastic (case; screen; keys material)
label: Physical Description
content: metal (electrical connection material)
label: Physical Description
content: paper (sticker material)
label: Physical Description
content: rubber (feet material)
label: Measurements
content: overall: 1 in x 2 3/8 in x 5 in; 2.54 cm x 6.0325 cm x 12.7 cm