Sinclair Cambridge pocket calculator

Made:
1973 in Cambridgeshire
inventor:
Clive Sinclair
maker:
Sinclair Radionics Limited

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Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Sinclair Cambridge Electronic Pocket Calculator. plastic, composites, electronic components. SCM - Computing & Data
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Sinclair Cambridge Electronic Pocket Calculator. plastic, composites, electronic components. SCM - Computing & Data
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Sinclair Cambridge Electronic Pocket Calculator. plastic, composites, electronic components. SCM - Computing & Data
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Sinclair Cambridge Electronic Pocket Calculator. This was one of a series of small calculators developed by British
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Sinclair Cambridge Electronic Pocket Calculator. This was one of a series of small calculators developed by British inventor, Sir Clive Sinclair (b.1940) in the early 1970s and the first that were designed to be small and light enough to fit in the pocket. It was sold both as a kit and fully built. Although it was expensive when it was first produced, its price soon dropped from £29.95 when first introduced in 1973 to below £15 in 1975. The Cambridge calculator was small, even by modern standards, weighing only 3.5oz (99g). It suffered from a design flaw; after a certain amount of use, it was impossible to turn off due to oxidation of cheap components used in the switch contacts.

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Science Museum: Mathematics: The Winton Gallery

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Details

Category:
Computing & Data Processing
Object Number:
1974-505
type:
electronic calculators
credit:
Sinclair Radionics Limited
status:
Permanent collection

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