Casio Personal-I Handheld Electronic Calculator - Model H-802

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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.
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.
Currently not on view
date made
Casio Computer Company
place made
Physical Description
plastic (case; display window; keys material)
metal (circuitry material)
paper (sticker material)
overall: 3/4 in x 3 in x 4 7/8 in; 1.905 cm x 7.62 cm x 12.3825 cm
ID Number
catalog number
accession number
Credit Line
Gift of John B. Priser
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History


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