Hewlett-Packard 9100B Desktop Electronic Calculator

Object Details

Hewlett-Packard Company

Description: This programmable desktop electronic scientific calculator has a beige metal case, a cathode ray tube display, a keyboard with four groups of keys, and a slot for a magnetic program card. The leftmost set of 15 tan keys includes coordinate conversion, logarithmic, exponential, trigonometric, and absolute value function keys. A switch above it can be set at degrees or radians.; The set of 15 ivory and dark brown keys second from the left allows for the positioning and storage of numbers in different registers. Next to the right is a set of 20 brown and ivory keys to enter numbers and to specify machine functions. The rightmost set of 14 tan keys is used for programming.; Five hand-wound circuit boards are inside the case, and three smaller circuit boards are inside the lid. There is a white power cord. A sticker on the back of the machine reads: SERIAL NUMBER (/) 938-02147.; The Crocker Nuclear Laboratory of the University of California at Davis acquired this machine in May of 1970 for a price of $5,195.00. Funds came from the Atomic Energy Commission’s Experimental Nuclear Physics program.; For related prototypes, see the green machine of Thomas Osborne (1978.0311.01, 1978.0311.02) and the prototype HP9100A (1978.0311.03).; Reference:; Accession File.
Location: Currently not on view

Physical Description: metal (overall material); plastic (overall material); glass (overall material); paper (overall material)
Measurements: overall: 21.5 cm x 40 cm x 49 cm; 8 15/32 in x 15 3/4 in x 19 9/32 in

See more items in: Medicine and Science: Computers; Computers & Business Machines; Trigonometry; Desktop Electronic Calculators

National Museum of American History

GUID (Link to Original Record): https://n2t.net/ark:/65665/ng49ca746ad-a499-704b-e053-15f76fa0b4fa