On Thu, 22 Oct 1998, Ward Donald Griffiths III wrote:
> The only "official" operating system for a Model III with a hard
> drive _was_ LDOS. Also for the Model One. TRSDOS 6, later called
> LS-DOS, was written by Logical Systems for the Model 4. (There
> was also a version of LS-DOS for the Model II/12 series [8" drives]
> but all of my copies were lost years back in a move, along with a
> lot of other material related to those systems -- as Ben Franklin
> once said, three moves equals one fire).
My recollections from the time:
LDOS preceded the model 4.
Lobo Systems sold cheap disk drives for the model I. Then they built a
replacement expansion interface (which includes the FDC). They used a WD
179x instead of 177x in order to add double density capability, as did the
Percom Doubler.
TRS-DOS wasn't going to do it for their double density system. So they
contracted with Randy Cook (TRS-DOS 2.0, 2.1, VTOS 3.0, 4.0, etc.) When
they realized that Randy Cook was incapable of ever finishing any project
(although brilliant at starting them), they went on a hiring spree and
hired a whole bunch of talent (such as Roy Soltoff) to finish the OS (LDOS
5.0). To market the OS Lobo set up "Logical Systems, Inc."
Meanwhile, RS came out with the Model 3, and "Model 3 TRS-DOS V1.3".
Eventually RS gave up on it and contracted to distribute LDOS under the
name "TRS-DOS 6".
THEN RS came out with the Model 4, and finally acknowledged the existence
of CP/M.
Anyone want to buy original copies of VTOS 3.0, 4.0, LDOS, Lobo expansion
interface, Lobo 8" drives for model 1, some model 1s, or 3s?
--
Fred Cisin cisin_at_xenosoft.com
XenoSoft http://www.xenosoft.com
2210 Sixth St. (510) 644-9366
Berkeley, CA 94710-2219
Received on Thu Oct 22 1998 - 15:00:41 BST