Z4 (computer)
German 1940s computer / From Wikipedia, the free encyclopedia
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The Z4 was arguably the world's first commercial digital computer, and is the oldest surviving programmable computer.[1]: 1028 It was designed, and manufactured by early computer scientist Konrad Zuse's company Zuse Apparatebau, for an order placed by Henschel & Son, in 1942; though only partially assembled in Berlin, then completed in Göttingen,[2] and not delivered before the defeat of Nazi Germany, in 1945.[3][4][5] The Z4 was Zuse's final target for the Z3 design.[6] Like the earlier Z2, it comprised a combination of mechanical memory and electromechanical logic, so was not a true electronic computer.[7]
Quick Facts Developer, Manufacturer ...
Developer | Konrad Zuse |
---|---|
Manufacturer | Zuse Apparatebau |
Type | Programmable, fully automatic digital electromechanical computer |
Release date | 1945; 79 years ago (1945) |
Introductory price | SFr 30,000 for five years |
Units sold | 1 (to ETH Zurich in a loan deal)[1]: 1077, 1139 |
CPU | @ (about) 40 Hz |
Memory | Mechanical, 32 bits word length |
Display | Decimal floating point numbers, punch tape or Mercedes typewriter |
Input | Decimal floating point numbers, punch tape |
Power | (about) 4 kW |
Mass | Ca. 1,000 kg (2,200 lb) |
Predecessor | Z3 |
Successor | Z5 |
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