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GM833 - 512K RAM Disk Card

Description

This interesting card simulates disk drive of 512k.  It was address via Z80 ports in a track / sector manner making interfacing extremely simple from a software point of view.  Each logical sector is mapped to 128K bytes, making this perfect for CP/M. 

Up to 16 boards could be added giving a huge (for the time) 8MB disk which was the largest addressable.  It should be note that this was not really possible due to power consumption and  bus length issues.

Technical Details

Documentation

Reference Images

GM833 - 512K RAM Disk Card

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