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/* Technical */
There is an expansion port interface which connects to the CPC.
It contains a 16KB ROM containing XD[[X-DOS DDOS]] which is normally in slot 6 but can be configured between 1 and 7.
There is a CPC interface which connects to a PC-XT interface.
The command descriptions and operation appear to be the same although the software seems to only use TEST READY, READ, WRITE, SEEK (parking), SET PARAMETERS and FORMAT.
Uses [[XDX-DOSDDOS]] v2.10 (which supports the harddisc20 MB hard-disc, and additionally supports external double sided 80 track disc drives).
The 20 MB harddisc hard-disc is split into four partitions, with drive names D, E, F, and G (drive name C isn't used here, but may be used as RAM disc, in combination with Dobbertin RAM expansion).
Under [[FutureOS]] the four partitions are named I, J, K and L. They can be accessed at the same time, so all 20 MB are usable at the same time.
