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UMC (Computer))
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UMC (Uniwersalna Maszyna Cyfrowa - Polish for Universal Digital Machine) is a family of computers produced by Elwro from 1962. It consisted of vacuum-tube based UMC-1 and transistor-based UMC-10 (1964). UMC computers operated using negabinary (-2 base) numeral system invented by prof. Zdzisław Pawlak. [1]
References
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^ Jerzy, Szewczyk (1970-04-09).
"The Universal UMC-10 Computer (Construction, Organization, Programming)".
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