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A Soviet computer Vector-06c did have a CP/M port called Micro-DOS that could work with a RAM disk only. Cold boot was either from a cassette tape or from ROM (cannot remember, though, if the operating system was a part of the on-board ROM, or one still had to plug an external ROM cartridge - either way, the bootloader could boot from both) The RAM disk ...


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I don't know the MicroBee, but grew up with CP/M 2.2 and 3.0 and its variety of floppy disk formats. There were two different ways of implementing skew in use: assigning the low-level sector IDs in a non-contiguous order, and simply access sectors by a 1:1 mapping from their logical number, resulting in sector ID sequences like 0 3 6 9 2 5 8 1 4 7, ...


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