Unisonic 799 Handheld Electronic Calculator
date: label: date made
content: ca 1975
name: label: maker
content: Unisonic
notes: label: Description
content: This handheld electronic scientific calculator has a metal and plastic case and an array of twenty-six rectangular plastic keys. The ten digit keys and decimal point key are white. They can take on a different meaning if the orange F key is pushed. The calculator can perform basic arithmetic; compute trigonometric and inverse trigonometric functions; and compute powers, exponents, natural logarithms, common logarithms, inverses, and square roots. It also has memory keys and a key for pi. To the right of the F key are radian/degree and on/off switches. A mark above this reads: Unisonic 799.
label: Description
content: Behind the keyboard is an eight-digit green vacuum fluorescent display. This display also could show a five-digit mantissa and two-digit exponent (with signs for both).
label: Description
content: A power jack is on the top edge.
label: Description
content: The back of the calculator has a sticker describing advanced problem solving. It reads in part: 799-A. It also reads in part: SERIAL NO. (/) 030944 (/) MADE IN JAPAN. Below this is a compartment for four AA batteries.
label: Description
content: Compare 1986.0988.116 (Unisonic 796).
label: Description
content: References:
label: Description
content: John F. Free, “Now There’s a Personal Calculator for Every Purpose,” <I>Popular Science</I>, 206 #2, February, 1975, pp. 78–81, 136–137. The Unisonic 799 is listed as selling for $99.
label: Description
content: [Advertisement], <I> Hartford Courant</I>, June 13, 1976, p. 15M. Unisonic 799 on sale for $26.88.
label: Location
content: Currently not on view
place: label: place made
content: Japan
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: 1986.0988.115
label: accession number
content: 1986.0988
label: catalog number
content: 1986.0988.115
objectType: label: Object Name
content: electronic calculator
label: Other Terms
content: electronic calculator; Handheld
physicalDescription: label: Physical Description
content: plastic (case; keys; circuit board material)
label: Physical Description
content: metal (case; circuitry material)
label: Physical Description
content: glass (display material)
label: Physical Description
content: paper (sticker material)
label: Measurements
content: overall: 1 1/4 in x 3 1/2 in x 6 in; 3.175 cm x 8.89 cm x 15.24 cm