Message-ID: <017801c04365$441d4260$11fea8c0@dell>
From: "Ben A L Jemmett" <ben DOT jemmett AT ukonline DOT co DOT uk>
To: <opendos AT delorie DOT com>
References: <20001029 DOT 173316 DOT -160705 DOT 0 DOT domanspc AT juno DOT com> <010b01c042dd$21bf1370$3d1e0404 AT dbcooper>
Subject: Re: DRDOS FDISK
Date: Tue, 31 Oct 2000 17:36:02 -0000
Organization: Jemmett Glover Software Development
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Reply-To: opendos AT delorie DOT com

> > I don't
> > remember if it was 3.2 or 3.3 DOS which came with the AT.
> I believe that DOS 3.1 was introduced with
> the AT. I remeber reading that somewhere.
Apparently DOS version 3.0 was the first DOS to be offered with the PC AT.
The first version I used was an Amstrad-customised 3.2 though.

v3.0 introduced support for 1.2Mb floppies, some of the foundation for
network support and some new hard disk formats, plus file and record locks.
It also marked the severe curtailing of OEM customisation of DOS, since the
new features needed a lot more standardisation of DOS's innards across
releases.

v3.1 introduced full network support, file sharing and a number of bug
fixes.

v3.2 added support for the 3.5" floppy disk, and moved some formatting
control into the actual device drivers.  It was also the first version
Microsoft sold to the end-user under its own name.

v3.3 added two new (documented) user commands (NLSFUNC and FASTOPEN) - I
think it was also the first appearance of TRUENAME.  A number of changes
were made to the DOS API, and the device drivers were expanded to provide
PS/2 support.  It was also the last version before v5 that Microsoft had an
active role in development and support for (IBM took over for version 4,
while MS concentrated on OS/2 - MS reverse-engineered v4 to provide their
support for it, with MS v4.00 = IBM v4.01).

Regards,
Ben A L Jemmett.
(http://web.ukonline.co.uk/ben.jemmett/, http://www.deltasoft.com/)