11 Jan
2003
11 Jan
'03
4:46 p.m.
Any ideas where to find one now though?
Cheers!
Ed Tillman
Store Automation Tech Support Specialist
Valero Energy Corporation
San Antonio, TX; USA
Phone (210) 592-3110, Fax (210) 592-2048
edward.tillman(a)valero.com <mailto:edward.tillman@valero.com>
-----Original Message-----
From: cctalk-admin@classiccmp.org@PEUSA On Behalf Of "Fred Cisin
(XenoSoft)" <cisin(a)xenosoft.com>
Sent: Sunday, January 12, 2003 12:02 AM
To: cctalk(a)classiccmp.org
Subject: RE: DOS 3.20
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.