Possible to speed up I/O subsystem of 5150?

From: Hans Franke <Hans.Franke_at_siemens.com>
Date: Fri Dec 10 04:54:37 2004

Am 9 Dec 2004 0:41 meinte 9000 VAX:
> > On Wed, 8 Dec 2004, Vintage Computer Festival wrote:
> > > Hey Jim.
> > > Are you allowed to use more modern versions of DOS (i.e. post 3.3)? If
> > > so, why not use a version that has SmartDrive built in? Better yet, use
> > > Speedstor or some equally capable caching utility. Or will caching not
> > > work for your purposes?

> > SMARTDRV was bundled with Windoze 3.10, and will work with
> > some of the <3.30 DOS versions.
> > But you need to use 3.31 or newer to have any partitions
> > larger than 32M.
> XT's do not have more than 640K memory, thus SMARTDRV is not very useful.

I may have to disagree. Without EMS, XTs don't have more than
992K of RAM. At least my XT systems did usualy offer at least
704K of continous RAM plus whatever was possible between the
cards. The 704K where supported by default, while for the mem
inbetween a little programm at startup to relink the memory
had to run. works fine wit ANY dos version.

If you had a VGA in your XT (8 Bit VGA was available), some
736K (708 as largest chunk) where possible without any addon
memory card, if you restricted yourself to colour (or 704+32K
when using Monocrome :)

And speaking of cache utils, there where quite some available
for DOS, that could run on XTs - all you had to do is give up
main mem :)

VCF Europa 6.0 am 30.April und 01.Mai 2005 in Muenchen
Received on Fri Dec 10 2004 - 04:54:37 GMT

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