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5 1/4 inch discs

What formats are popular for 5 1/4 inch discs? Which are used by CP/M systems? Specifically, what physical hardware and controllers are used by: IBM PC, Apple/Softcard, HP-125, Xerox 820, Micropolis, Northstar? What is the best configuration for an ``Octopus'' machine to allow us to write discs for all these machines?

Editor: John Walker