Texas Instruments Citation Handheld Electronic Calculator
date: label: date made
content: ca 1977
name: label: distributor
content: Western Auto Supply Company
label: maker
content: Texas Instruments
notes: label: Description
content: This is one of a series of handheld electronic calculators manufactured by Texas Instruments and distributed by Western Auto. It has a black plastic case, a wood-textured plastic keyboard, and an array of twenty-four rectangular black keys. In addition to ten digit keys and four arithmetic function keys, there are clear entry/clear/ON, decimal point, total, OFF, change sign, percentage, and four memory keys. Behind these is an eight-digit fluorescent display. A mark between the display and the keyboard reads: W (/) A Citation. A socket for a battery adapter is on the right edge.
label: Description
content: The back has a compartment for a battery at the center. Text above this reads: TEXAS INSTRUMENTS (/) electronic calculator (/) A DIM OR ERRATIC DISPLAY INDICATES (/) A DISCHARGED BATTERY. A mark below the compartment reads in part: SERIAL NO. 3378 (/) ASSEMBLED IN EL SALVADOR. Twelve patent numbers are listed, ranging from 3819921 to 4014013
label: Description
content: U.S. patent 3819921 was granted to J. Kilby, J. Merryman and T. J. Van on January 25, 1974 and assigned to Texas Instruments. U.S. patent 4014013 was granted to David J. McElroy on March 22, 1977.
label: Description
content: Compare to 1987.0435.17 and 1986.0988.194. This calculator closely resembles the Texas Instruments 1025 in general appearance and the selection of keys. The keyboard finish is different.
label: Location
content: Currently not on view
place: label: place made
content: El Salvador
setName: label: See more items in
content: Medicine and Science: Computers
label: See more items in
content: Computers & Business Machines
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content: Handheld Electronic Calculators
creditLine: label: Credit Line
content: Gift of John B. Priser
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1986.0988.191
label: accession number
content: 1986.0988
label: catalog number
content: 1986.0988.191
objectType: label: Object Name
content: electronic calculator
label: Other Terms
content: electronic calculator; Handheld
physicalDescription: label: Physical Description
content: plastic (case; display; keys material)
label: Physical Description
content: metal (circuitry material)
label: Physical Description
content: rubber (feet material)
label: Measurements
content: overall: 1 1/4 in x 2 3/4 in x 5 1/2 in; 3.175 cm x 6.985 cm x 13.97 cm