Hewlett-Packard HP 48SX Scientific Expandable Handheld Electronic Calculator


This alphanumeric programmable graphing handheld calculator has a dark brown plastic case and an array of forty-nine rectangular plastic keys. Three of the keys are shift keys that determine the effect pressing other keys. The calculator is capable of solving and plotting a wide array of problems from arithmetic, trigonometry, algebra, statistics, and calculus. The screen is behind the keyboard. A mark behind that reads: hp HEWLETT (/) PACKARD (/) 48SX SCIENTIFIC EXPANDABLE.

An empty compartment that can hold two expansion cards is at the top of the back. Three corroding AAA batteries were removed from a compartment at the bottom and discarded. A mark above this compartment reads: MADE IN USA 3032A01521 (/) HEWLETT PACKARD 1989. The first four digits of the serial number indicate it was made in the thirty-second week of 1990. The calculator has four rubber feet.

The object was received with a zippered case and a spiral-bound instruction manual HP 48SX Scientific Expandable Owner’s Manual Volume 1. This example is Edition 3, published in May of 1990.

The calculator was used by a faculty member at the U.S. Naval Academy in Annapolis, Maryland.


W.A.C. Mier-Jedrzejowicz, A Guide to HP Handheld Calculators and Computers , Tustin, California: Wilson/Burnett Publishing, 1997, pp. 98–99, 133.

Date Made: 1990

Maker: Hewlett-Packard Company

Location: Currently not on view

Place Made: United States

See more items in: Medicine and Science: Computers, Computers & Business Machines, Handheld Electronic Calculators


Exhibition Location:

Credit Line: Gift of Mark E. Kidwell

Data Source: National Museum of American History

Id Number: 2014.0168.01Catalog Number: 2014.0168.01Accession Number: 2014.0168

Object Name: electronic calculator

Physical Description: metal (keyboard; circuitry; manual binding material)plastic (case; keys; carrying case material)paper (manual material)Measurements: overall: 6 cm x 15.2 cm x 21.5 cm; 2 3/8 in x 5 31/32 in x 8 15/32 incalculator in carrying case: 2.8 cm x 10.3 cm x 18.8 cm; 1 3/32 in x 4 1/16 in x 7 13/32 inmanual: 3 cm x 15.2 cm x 21.5 cm; 1 3/16 in x 5 31/32 in x 8 15/32 in

Guid: http://n2t.net/ark:/65665/ng49ca746ae-4f45-704b-e053-15f76fa0b4fa

Record Id: nmah_1465552

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