The Z5 was a

computer A computer is a machine that can be programmed to Execution (computing), carry out sequences of arithmetic or logical operations (computation) automatically. Modern digital electronic computers can perform generic sets of operations known as C ...

designed by Konrad Zuse and manufactured by Zuse KG following an order by Ernst Leitz GmbH in Wetzlar in 1950. The computer was delivered in July 1953 and was the first commercial built-to-order mainframe in Germany. The computer was purchased to help with the design of optical lens systems. The Z5 is the successor of the Z4, and is much more compact and powerful. Zuse implemented the machine with relays, since vacuum tubes were too unreliable at the time. The Z5 used the same principles as the Z4, but was six times faster. It also had punched tape readers, which the Z4 did not have. It had conditional branching and five subroutine loops.

Specifications

* Frequency: ca. 40 Hz * Arithmetic unit: Floating point numbers (36 bit length) * Memory: 12 words, 36 bit * Speed: addition 0.1 second, multiplication 0.4 s, division 0.7 s * Power consumption: 5000 watts * Weight: ca.

References

External links

Z5 information (German)
1950s computers Computer-related introductions in 1953 Konrad Zuse Computers designed in Germany Serial computers {{computer-stub