Enterprex Z50 Handheld Electronic Calculator

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This handheld electronic calculator has an array of twenty rectangular plastic keys. To the right of the ten digit keys, decimal point key, and total key is a column of four function keys. Right of these is a column with a clear/clear entry key, a percentage key, and two memory keys. The power switch is above this column. Behind the keyboard is an eight-digit red LED display. Marks behind this read: ENTERPREX (/) Model-Z50.
A battery compartment is at the top of the back of the calculator. A sticker below this gives “CALCULATION EXAMPLES.” It is marked in part: SERIAL NO. (/) 28923 (/) MADE IN TAIWAN (/) (R.O.C.).
The calculator is stored in a black plastic sleeve, which in turn fits into a cardboard box. A mark on the box give a price of: 599. Also in the box are an instruction leaflet, a warranty, and a warranty for a Casio pocket-mini calculator.
No advertisements found.
Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 71.
Vintage Technology website, accessed June 18, 2014.
Currently not on view
date made
ca 1977
place made
Physical Description
plastic (case; keys; sleeve; display cover material)
metal (circuitry; keyboard material)
paper (sticker; box; documentation material)
ceramic (display board material)
overall: 7/8 in x 2 3/4 in x 5 1/4 in; 2.2225 cm x 6.985 cm x 13.335 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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