11 Jan
2003
11 Jan
'03
3:59 p.m.
On Sat, 11 Jan 2003, John Willis wrote:
IBM PC-DOS or Micro$oft MS-DOS? I have the PC-DOS 3.20
manual.
The only difference that I found between them (except for certain highly
customized OEM MS-DOS versions) was DRIVPARM. It is present in both, but
is not documented in PC-DOS. It is incompatible with the IBM BIOS.
(DRIVPARM worked with both PC-DOS and MS-DOS with three different generic
clones; DRIVPARM would not work with either MS-DOS nor PC-DOS on real IBM
AT and PS/2 (model 50?))
Some OEMs included the "technical reference manual" as appendix to their
MS-DOS manual. IBM sold it as a separate book after 2.00.