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Description: | 130 ELECTRONIC CALCULAROR FRIDEN MADE IN HPLLAND (brand name and model on the front of the machine). SHERT GRANT NO. HERT £)£ SERIAL NO 34454 (dymotape labels on the side of the machine). Friden (brand name on the back of the machine). MODEL 130-A SERIAL 34454 (on a plate on the underside of the machine. MANU Friden Inc. circa 1963 Nijmegen,, Holland. DES after PERRIN,Jean,Bapatiste,Professor. 1895 Ecole Normale Superieur, Paris, France. DES after CROOKES,William,Sir. 1878 London, England. DES after BRAUN,Karl,Ferdinand. 1897 Tubingen, Germany. This is a Friden 130-A electronic three rules calculator with square root function. It has a full keyboard and a seven digit 5DEP1 electrostatic deflection CRT tube display. Introduced in 1963 this machine 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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