Object Details
- Casio Computer Company
- Description
- This handheld electronic calculator is a modified version of Casio’s first commercial handheld electronic calculator, the Casio Mini. It has a black plastic case with aluminum trim on the front. The array of square plastic keys on the right side includes ten digit keys, a decimal point key, a cancel key, keys for four arithmetic functions, a total key, and an arrow key that is pressed to show more of larger results. Left of the cancel key on the top row of keys is a switch to set the position of the decimal point.
- To the left of the keyboard is a six-digit vacuum fluorescent display. Below it is the on/off switch. A mark right of the switch reads: CASIO-MINI (/) ELECTRONIC CALCULATOR. A carrying loop extends from the left edge. This edge also has a socket for a power adapter. A mark inscribed on the trim on the front edge reads: Bob Clemens.
- Unscrewing screws on the two ends of the calculator makes it possible to remove the top. A sticker attached in front of the keyboard on the inside reads: 3084597. A mark on a chip below the display reads: 3F 4 (/) HD32154P. This is a large-scale integrated chip made by Hitachi. Above it is a chip made by NEC with number μPD129C.
- The back of the calculator has a compartment that would hold four batteries. A mark on the back reads: MINI CM-602 ELECTRONIC (/) CALCULATOR (/) BATTERY SUPPLY 1.5 V x 4 or (/) use AC ADAPTOR AD-4145 (/) 500mW MADE IN JAPAN (/) CASIO COMPUTER CO., LTD. A stcker below this gives operating instructions.
- A mark on a sticker on the back of the battery compartment reads: 486383.
- A June 1973 illustration of the Casio Mini in the Los Angeles Times shows this model calculator. It was on sale for $59.95.
- Compare 1986.0988.184.
- References:
- Rick Bensene, Old Calculator Museum website.
- Los Angeles Times, June 30, 1973, p. D2.
- Website of Casio International.
- Location
- Currently not on view
- Credit Line
- Gift of John B. Priser
- 1973
- ID Number
- 1986.0988.185
- accession number
- 1986.0988
- catalog number
- 1986.0988.185
- Object Name
- electronic calculator
- Other Terms
- electronic calculator; Handheld
- Physical Description
- plastic (case; keys; switches; circuit board material)
- glass (tubes material)
- paper (stickers material)
- metal (circuitry; trim material)
- Measurements
- overall: 1 3/8 in x 6 in x 3 1/8 in; 3.4925 cm x 15.24 cm x 7.9375 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_334599
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746ae-7317-704b-e053-15f76fa0b4fa
