Zorro (computer)

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Zorro was the fourth and final version of the Amiga Development System which became the basis for the production A1000. The name is also found on the original A1000 schematics for NTSC machines.

The previous board, Velvet only had 128K of memory, which was deemed insufficient for running Workbench and AmigaDOS.


This motherboard supported a number of new features including:

  • 256K RAM (64Kx4 chips)
  • A 256K Writable Control Store (WCS) for loading Kickstart from disk
  • 8520 CIA chips
  • A current limiting circuit for the gameport


References

  1. Bagnall, Brian. Commodore: The Amiga Years Variant Press - 2017
  2. Haynie, Dave. Amiga Bus History
  3. Hill, Eric. The Amiga before the Amiga: The Amiga Development System Amiga Love - 2019
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