Accession No

6771

Brief Description

HP-25 Applications Programs electronic pocket calculator in leather case, with handbook and quick reference guide, by Hewlett-Packard, Singaporean, 1975

Origin

Singapore

Maker

Hewlett-Packard

Class

calculating; mathematics

Earliest Date

1975

Latest Date

1975

Inscription Date

Material

plastic; metal; paper; cloth (felt)

Dimensions

(calculator) length 128mm, width 62mm, height 24mm (handbook) length 152mm, width 216mm, height 20mm

Special Collection

Provenance

Found in collection pre-2020.

Inscription

(leather case)
'Hewlett Packard'

(handbook)
'HEWLETT-PACKARD
HP25
Applications
Programs'

Description Notes

Hewlett Packard HP25 Applications Programs electronic pocket calculator in leather case, with handbook and quick reference guide, by Hewlett-Packard, Singaporean, 1975.

A portable programming calculator with a laminated threefolded card entitled "HP25 Quick Reference Guide" fit in a brown artificial leather case. The calculator has white number keys, black function keys, and two colour (blue and yellow) prefix keys that indicate different functions on the black keys. It is powered by two AA batteries (the two expired AA Duracell batteries have been removed), and there was "OK to 3/2003" written on the lid of the batter slot. The set comes with a wire-bound handbook of 161 pages, explaining different functions that the calculator provide, including "Algebra and Number Theory" (Chapter 1), "Finance" (Chapter 2), and "Games" (Chapter 3). The handbook dates the model in 1975.

References

Events