Konrad Zuse. Biography. Contributions. Zuse-Companies. Z3r. Tour-Zuse-Computer. Z23 Crosses Altlantic. Early Computers. Neumann vs Konrad Zuse. Impressum and Contact. Professor Dr.-Ing. habil. Horst Zuse

Z5



The Z5 was ordered by the Leitz AG Wetzlar in 1950. Zuse implemented this machine with relays, as vacuum tubes were too unreliable at the time, causing more than 50 per cent downtime.


The Z5 construction followed the same principles as the Z4 did, however with a six-fold increase in speed. It also had multiple punch tape readers for conditional execution of subroutines.




Z5 (German)



Zuse-Computer (German)



The celebration of the delivery of the Z5 is on the Zuse-DVD.

Z11.

Goto the Z11 ...

Name of Machine
Z5 (1953)
Implementation
Successor of the Z4, relays, stepwise relays and punchtape readers.
Frequency
Ca. 40 Hertz
Arithmetic Unit
Floating point numbers, 36 bit word length
Speed
Addition 0,1 sec. Multiplication 0,4 sec., Division 0,75 sec.
Input
Decimal numbers floating point, 5 subroutine punchtape readers.
Output
Addition 0,1 sec. Multiplication 0,4 sec., Division 0,75 sec.
Word Length
36 bit, 1 bit sign, 7 bit exponent, 28 bit mantissa.
Elements
Ca. 2500 relays, 20 stepwise relays.
Memory
720 relays, 36 bit word length, 12 cells.
Power Consumption
5000 W
Weight
Ca. 2000 KG
Area of Application
Leitz company in Wetzlar Germany. Calculation of lenses.
Sold
To Leitz company (1953).
Costs
300.000 DM in advance in 1950.
Links
Zuse-Computer (English)
 Zuse-Computer (German)
 Konrad Zuses Work on a DVD
Cpmments
First commercially built computer in Germany. The Z5 fast 6 time faster than the Z4. The Z5 was a special production and was very reliable. The Z5 worked till 1958.