TRS-80 Model 4 help requested

From: Fred Cisin <cisin_at_xenosoft.com>
Date: Wed Feb 26 22:51:00 2003

On Wed, 26 Feb 2003, Al Hartman wrote:
> I had an LNDoubler in it, and always meant to get 8"
> drives to get 1.2mb each instead of 720k.
> I never did do that.
> Now, I could put 1.2mb drives on with that, I guess.

Yep
The earliest 1.2M drive that I saw (before the AT) was a Mitsubishi 4854?
I was told that it had had been designed for the explicit purpose of
replacing 8" drives. It did NOT also have a "360K" mode.

I also heard a rumor (probably not true) that "When Microsoft was writing
the DOS and AT BIOS support for 1.2M drives, they thought that IBM had
decided to release a model with 8" drives".

> I think that one of Dos'es (MultiDOS I think) would
> boot on both machines as long as the Boot sector was
> the correct type. I know one of the Dos'es could do
> that.

Hmmm. mixing single density sectors and double density sectors on the same
track?

> I REALLY have to find my dream machine... A complete
> LNW Model I or Model II (Team) computer...

This'll make your day,...
I had an LNW. (also a Lobo expansion interface, a PMC81, etc.)
Most of that stuff, I sold cheap at VCF (which is run by your buddy
Sellam).
Received on Wed Feb 26 2003 - 22:51:00 GMT