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Description: | FRIDEN Inc. SAN LEANDRO, CALIFORNIA. MODEL 132 Serial 5282 1910 (on the underside of the machine). MANU Friden Inc. circa 1964 San Leandro, California, The United States of America. DES after PERRIN,Jean,Bapatiste,Professor. 1895 Ecole Normale Superieur, Paris, France. DES after CROOKES,William,Sir. 1878 London, England. This is a Friden model 132 electronic three rules calculator with square root function. It has a full keyboard and a seven digit 5DEP1 CRT electrostatic cathode ray tube display. Introduced in 1964. This machine was the replacement for the model 130, which was the first transistor based electronic calculator.
The thirteen digit memory store of this machine was based on binary counters and trains of pulses stored in an acoustic delay line, also known as a magnetostrictive delay, that consisted of tensioned wires of nickel alloy carrying longitudinal waves that were produced and detected electromagnetically. The Friden 130 and 132 were also the first calculators to use RPN, reverse Polish notation, a mathematical expression, in which the numbers precede the operation. For example, 2 + 2 would be expressed as 2 2 +, and 10 - 3 * 4 would be 10 3 4 *. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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