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Konrad Zuse

• The Person
  • Engineer
  • Artist
  • Innovator
  • Awards
• Zuse-Computer
  • His aims
  • Die Z1
    • Architecture
    • Operating mode
  • The Z2
  • The Z3
    • Architecture
    • Operating mode
  • The Z4
  • Z22,Z23,Z25&Z64
• After Zuse
• Learning success control
  • Muliple Choice Person
  • Muliple Choice Computers
  • Sort images
  • Timeline
• Credits
• Sources

Operating mode

The Z3 was a clock-controlled machine. The clock was an electric motor, which pushed a clock roll. This was a drum that rotates 5.3 rounds per second and thus controls the individual relay groups.

The Z3 had the following machine instructions:

• Read a number from memory
• Write a number to the memory
• Convert from decimal to binary and reverse
• Addition
• Subtraction
• Multiplication
• Division
• Square root

The input of data was done either by keyboard or perforated tape. Numeric characters had to be entered with a keyboard. Furthermore, almost all operations are performed directly from the keyboard.