9 Dec
2004
9 Dec
'04
7:40 a.m.
On Thu, 9 Dec 2004, 9000 VAX wrote:
But wouldn't a few hundred K of cache be helpful?
While it's true that XTs can not have more than 640K of REAL memory
(actually 1M minus some overhead with some hardware and software hacks),
not even HIMEM, and certainly no XMS (Extended Memory Specification),
I have had up to 8meg of "Expanded" memory on XTs.
I have a tote full of TallTree JRAM, JLASER, etc. stuff.
I don't know what the max was on the later LIM (Lotus Intel MicroSoft)
EMS (Expanded Memory Specification).
--
Grumpy Ol' Fred cisin(a)xenosoft.com
There are 8 bit SCSI controllers too. Once I sold two
to one guy for
$10. Both used NCR 53c90, both had ROM and were bootable.
I have a DTC 3250 (SCSI + floppy) with manual AND DRIVER DISK!, and a
Future Domain TMC-840. Both have ROMs (EPROMs?) They are available if
they will help.
(I found them a few days ago while looking for my ST-01s (another thread);
Some book or magazine had had source code for a stand-alone CD-ROM driver
using the ST-01, and I had gotten a few to play with many years ago.)
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.