Date   : Mon, 06 Feb 1989 13:24:25 MEZ
From   : Christian Lohmann RZ1S @DFVLRGO1
Subject: Info-CPM V89/13 AMSTRAD & DISKS

The 3" disks are single sided/single density with 40 tracks each side
and 36 sectors/track (128 byte sector size).
So you will have 2*180 KB of data minus system tracks and dir-groups
on a disk.
I don't know (sorry) how much bytes for system are used by this CPM3
machine but the AMSTRAD 464 CPM2.2 disks have two system tracks and
two dir-groups so the disks will at least contain 169 KB on each side.

I heard of a second 3" drive distributed by AMSTRAD, that is double
sided/double density. So you'll get 720 KB (minus system ...).


<Christian>


End of INFO-CPM Digest
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