XT 5160

[Erik Klein]

There was also a DOS 1.05 released between 1.00 and 1.10 that fixed a math bug in BASIC, if I recall correctly.  It was available from retailers but it was never sold as a packaged item.
 
I've got a copy of it, obtained from ComputerLand,  in my DOS 1.0 box.  I'm pretty sure it boots as DOS 1.0 but contains new BASIC and BASICA programs.
 
   Erik Klein
   www.vintage-computer.com
   www.vintage-computer.com/vcforum
   The Vintage Computer Forum
   

Fred Cisin <cisin at xenosoft.com> wrote:
> Kevin wrote:
> > Can anyone advise what OS shipped with the IBM XT 5160 - I can't seem to
> > find a definitive answer on the net.

On Wed, 4 May 2005, Eric Smith wrote:
> None. IBM-DOS was available for separate purchase, as were several
> other operating systems.

Eric is right, of course, but IBM (and particularly some third party
IBM dealers, such as Computerland) also liked to bundle a few products
together.
Since low level format of hard drives was only available in the
"Advanced Diagnostics", if you bought a machine and OS at the same
time, IBM would gladly "install" it.

PC-DOS 1.00 was released simultaneously with the 5150. (8/11/1981)

PC-DOS 1.10 added support for double sided drives.

PC-DOS 2.00 was released simultaneously with the availability of the XT,
and added support for 9 sectors per track (v 8), subdirectories, and hard
drives.

PC-DOS 2.10 was released simultaneously with the PCJr and "portable PC",
and slowed down disk access for the lousy Qume 142 drives

PC-DOS 3.00 was released simultaneously with the AT, and added support for
1.2M floppies.

PC-DOS 3.10 added the network redirector and a few other items.

PC-DOS 3.20 added support for 720K 3.5" drives.

PC-DOS 3.30 was released simultaneously with the PS/2s, and added support
for 1.4M drives.

PC-DOS 4.00 added support for hard drives > 32M

PC-DOS 5.00 add some bundled software

PC-DOS 6.10 added bundled Compression.

PC-DOS 7.00 is too new to worry about.

NOTE: 1.25, 2.11, and 3.31 were only available as MS-DOS, NOT PC-DOS.


--
Grumpy Ol' Fred cisin at xenosoft.com