Object Details
- APF Electronics
- Description
- 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.
- 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.
- This calculator closely resembles an APF calculator advertised in a March 1977, issue of the Los Angeles Times as selling for $7.99. That advertisement does not give a model number.
- Reference:
- Los Angeles Times, March 19, 1977, p. 15.
- Location
- Currently not on view
- Credit Line
- Gift of John B. Priser
- ca 1977
- ID Number
- 1986.0988.175
- accession number
- 1986.0988
- catalog number
- 1986.0988.175
- Object Name
- electronic calculator
- Other Terms
- electronic calculator; Handheld
- Physical Description
- plastic (case; screen; keys material)
- metal (electrical connection material)
- paper (sticker material)
- rubber (feet material)
- Measurements
- overall: 1 in x 2 3/8 in x 5 in; 2.54 cm x 6.0325 cm x 12.7 cm
- place made
- Japan
- See more items in
- Medicine and Science: Computers
- Computers & Business Machines
- Handheld Electronic Calculators
- National Museum of American History
- Record ID
- nmah_334589
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746ae-1520-704b-e053-15f76fa0b4fa
