[sebhc] DISKETTES and stuff
sp11 at hotmail.com
Thu Jun 3 18:28:37 CDT 2004
> >Do you know if CP/M drivers for the Heathkit hard-sectored controller
> >do the same thing?
>I'd suspect that they all use volume 0 but I don't know.
That seems to be what I recall. Admittedly, I worked much more extensively
with HDOS. So you'd need to know a disk is CPM to emulate it (maybe call it
h8c?). But before you'd need to worry about that, the emulator would need
to handlle the xcon memory swap i/o port control.
Also, I think CPM was much more commonly used on H37's and 47's.
>From: Pat Swayne
>Actually, HDOS is the "father" of "DOS" (MS-DOS or PC-DOS), Gordon Letwin
>and Greg Chandler ... went to Microsoft and developed MS-DOS.
Then, Steve Thatcher said:
>these guys may have gone to work for Microsoft, but MS-DOS was
>based on work done by Tim Paterson from Seattle Computer Products.
Yea, that's what I recall also. Letwin may have hacked on DOS, but
Microsoft bought it from Paterson (for a steal, if I remember). Chandler
was still at Heath well after MS-DOS was out and had gone through several
revisions. (I didn't even know he ever went to Microsoft).
P.S. I added a little gizmo named "hlab.exe" to the utilities .. it just
prints out the label sector info from a disk image (h8d).
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