Smithsonian museums continue to be closed to support the effort to contain the spread of COVID-19. Read a message from our director, and check our website and social media for updates.

Unisonic 737 Handheld Electronic Calculator

Unisonic 737 Handheld Electronic Calculator

<< >>
Usage conditions apply
Downloads
Description
This handheld electronic calculator has a metal and plastic case with an array of twenty-five square plastic keys. These include ten digit keys, a decimal point key, two memory keys, a clear key, four arithmetic function keys, a total key, and a percentage key. Above the keyboard are a decimal point switch (floating decimal point, two digits after the decimal point, or four digits after the decimal point) and a subtraction summation switch. A mark behind this reads: Unisonic 737 (/) SLIDE RULETTE. Behind this is a green vacuum fluorescent display. Another switch and a jack for a power supply are along the back edge. Text on the back reads: Unisonic 737 (/) RATING 6V-DC 0.5W (/) NO. 028723 (/) MADE IN JAPAN. Below this is a compartment for four AA batteries.
Compare MachVI Slide Rulette (1986.0988.254).
Reference:
[Advertisement], Washington Post, May 15, 1974, p. E7. Unisonic 737 “pocket memory calculator,” regularly priced at $69.96, on sale for $59.88.
Location
Currently not on view
Object Name
electronic calculator
date made
ca 1974
maker
Unisonic
place made
Japan
Physical Description
plastic (case; keys material)
metal (case; circuitry material)
glass (display material)
Measurements
overall: 1 in x 3 3/8 in x 5 1/4 in; 2.54 cm x 8.5725 cm x 13.335 cm
ID Number
1986.0988.119
accession number
1986.0988
catalog number
1986.0988.119
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
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Comments

Add a comment about this object