Object Details
maker
Casio Computer Company
Description
This handheld electronic calculator has a plastic case that is black in front and cream-colored on the edges and back. The keyboard has an array of square plastic keys, including ten digit keys, a decimal point key, a total key, and four keys for arithmetic functions that are to the right of the digit keys. Across the top of the keyboard are AC (all clear), C (clear entry), square root, and percentage keys.
Behind the keyboard is an eight-digit display. Text behind this reads: CASIO personal-I (/) ELECTRONIC CALCULATOR. The on/off switch is at the top of the left side, and the socket for a power adapter is along the top edge at the left.
A battery compartment at the top of the back would hold two AA batteries. A sticker inside the compartment reads: 4409774. Text below the compartment reads: CASIO personal-I (/) BATTERY SUPPLY 1.5Vx2 (/) or use AC ADAPTOR AD-2S (/) 0.2W (/) H802 MADE IN JAPAN (/) BM CASIO COMPUTER CO. LTD.
Advertisements for the Casio Personal-I calculator appeared in the Chicago Tribune and the Los Angeles Times during 1976 and 1977. The calculator cost $9.95 initially, with sale prices as low as $8.90. Ball and Flamm also date the calculator to about 1976.
References:
Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 52.
Chicago Tribune, June 29, 1976, p. 4.
Los Angeles Times, September 9, 1976, p. N3.
Los Angeles Times, March 17, 1977, p. T4.
Location
Currently not on view
Credit Line
Gift of John B. Priser
date made
1976-1977
ID Number
1986.0988.024
catalog number
1986.0988.024
accession number
1986.0988
Object Name
electronic calculator
Other Terms
electronic calculator; Handheld
Physical Description
plastic (case; display window; keys material)
metal (circuitry material)
paper (sticker material)
Measurements
overall: 3/4 in x 3 in x 4 7/8 in; 1.905 cm x 7.62 cm x 12.3825 cm
place made
Japan
See more items in
Medicine and Science: Computers
Computers & Business Machines
Handheld Electronic Calculators
Data Source
National Museum of American History
Link to Original Record
Record ID
nmah_334438