Z23 (computer)
The Zuse Z23 was a transistorized computer first delivered in 1961, designed by the Zuse KG company . A total of 98 units were sold to commercial and academic customers up till 1967. It had a 40 bit word length and used an 8192 word drum memory as main storage, with 256 words of rapid-access ferrite memory. It operated on fixed and floating point binary numbers. Fixed-point addition took 0.3 milliseconds, a fixed point mulitplication took 10.3 milliseconds. It was similar in internal design to the earlier vacuum tube Z22. Related variants were the Z25 and Z26 models.[1]
The Z23 used about 2700 transistors and 7700 diodes. It had an Algol 60 compiler. It had a basic clock speed of 150 kHz and consumed about 4000 watts of electric power. An improved version Z23V was released in 1965, with expanded memory and higher processing speed.
References
- ^ Stephen H. Kaisler, Birthing the Computer: From Relays to Vacuum Tubes, Cambridge Scholars Publishing, 2016 ISBN 1443896314, page 21
External links
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