UMC (computer)

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]

UMC-1

UMC-10

References

1. Jerzy, Szewczyk (1970-04-09). "The Universal UMC-10 Computer (Construction, Organization, Programming)". {{cite journal}}: Cite journal requires |journal= (help)^{[dead link‍]}