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There were a few variations of the basic card. The 64KZ-II being the most elaborate and flexible. There were multiple switch settings required depending on if the card was to be used in a single user 64K system or multiple cards in a multi-user system working with their Cromix system. Up to one of 8 banks of boards could be individually selected (by outputting a bit to port 40H). The board did not utilize the refresh signal from the Z80 CPU card but instead had it's own onboard refresh controller.
Other Cromemco S-100 Boards
This page was last modified on 10/25/2013