UMC (Computer)
Encyclopedia
UMC is a family of computer
s produced by Elwro
from 1962.
It consisted of vacuum-tube based UMC-1 and transistor
-based UMC-10. UMC computers in 1964 operated using negabinary (-2 base) numeral system
invented by prof. Zdzisław Pawlak.
Computer
A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...
s produced by Elwro
Elwro
Elwro – was a Polish company that produced the Odra and ELWAT computers and two ZX Spectrum clones. The Elwro factory was sold to Siemens in 1993 and shut down shortly afterwards....
from 1962.
It consisted of vacuum-tube based UMC-1 and transistor
Transistor
A transistor is a semiconductor device used to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current...
-based UMC-10. UMC computers in 1964 operated using negabinary (-2 base) numeral system
Numeral system
A numeral system is a writing system for expressing numbers, that is a mathematical notation for representing numbers of a given set, using graphemes or symbols in a consistent manner....
invented by prof. Zdzisław Pawlak.