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UMC (computer)
UMC
is a
family
of
computers
produced
by
Elwro
from
1962
.
It consisted of
vacuum-tube
based
UMC-1
and transistor-based
UMC-10
. UMC computers operated using
negabinary
numeral system
invented
by
prof
.
Zdzisław
Pawlak
.