6 Jun
2023
6 Jun
'23
7:26 p.m.
On Tue, Jun 06, 2023 at 01:54:00PM -0400, Santo Nucifora via cctalk wrote:
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On Tue, Jun 6, 2023 at 1:23 PM Tom Gardner via cctalk
<cctalk(a)classiccmp.org>
wrote:
I don't have one and I worked for them. ;)
Thanks but I'm pretty sure the Hyperion was
not PC-DOS compatible.
I don't want to get off-topic here but the Dynalogic Hyperion is MS-DOS
compatible. I do have one or two of them.
I have run up to MS-DOS 5.0 on it as well as the Hyperion branded MS-DOS
2.11. There are some extra configuration commands in that particular
Sure the problem is on the early models when you wanted to try poking
at the 8250 serial port which we did not have. We had a Z8530.
I can't even remember what the graphics card was (I wasn't one of the
H/W designers) but I remember Chris Sullivan worked hard on it. The graphics
card emulated an IBM CGA and mono with double memory mapping.
If you don't poke at the HW it's fine.
version. I have only tried PC-DOS 3.3 on this but not
other versions and
it works okay. There are varying degrees of MS-DOS compatibility. It is
NOT one of the few early computers that ran a customized version of MS-DOS
1.25 and could only run that. Those had horrible compatibility. Without
those specific boot disks, the computer will not run. I have an STM
Personal computer that is like this and I don't have the correct MS-DOS
1.25 for it to boot. It's a paperweight without it, unfortunately.
Saying that, the Hyperion is not 100% MS-DOS compatible but it is
relatively high. Dynalogic used to have compatibility lists of
out-of-the-box MS-DOS software that would run without issues. You can see
an example here:
https://vintagecomputer.ca/files/Dynalogic%20Hyperion/compatibility/Hyperio…
Yes because people were poking at the raw hardware! There was no way
around it eg. if you wanted a comm program since the BIOS did not support async
interrupts with buffering etc. so one had to write their own and take
over the serial port. *sigh*
Now, if you stated, "100% PC-DOS compatible", then you would be accurate.
Santo
> FWIW I remember as a PC clone user in the 1980s and into the 1990s
> acquiring machines that only ran PC-DOS and only using PC-DOS up to and
> including at least version 5.
I remember looking at the original source code. It... was pretty
awful as I remember it. It was still labelled as QDOS in the source
I saw.
Tom
-----Original Message-----
From: db <db(a)db.net>
Sent: Tuesday, June 06, 2023 5:58 AM
To: t.gardner(a)computer.org; General Discussion: On-Topic and Off-Topic
Posts <cctalk(a)classiccmp.org>
Cc: Tom Gardner <tom94022(a)comcast.net>
Subject: Re: [cctalk] First non-IBM PC-DOS Compatible PC
On Mon, Jun 05, 2023 at 10:28:26PM -0700, Tom Gardner via cctalk wrote:
FWIW I worked at a company here in Ottawa. Dynalogic. We produced a IBM
look alike which had a BIOS not copied from the original IBM PC.
In fact we used different UARTs and graphics card.
Although I was not on the Bios team Don Bailey was.
<http://www.sce.carleton.ca/faculty/bailey/bailey_bio.shtml>
http://www.sce.carleton.ca/faculty/bailey/bailey_bio.shtml
<https://museum.eecs.yorku.ca/collections/show/7>
https://museum.eecs.yorku.ca/collections/show/7
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Hi:
Doing some research for historical purposed no
litigation at all
trying to identify the first legal PC-DOS compatible PC,
legal in the
sense that it s BIOS was not a copy of an IBM BIOS. Eagle gets the honor
of being first MS-DOS compatible and getting sued for copying IBM s BIOS ??
The Compaq Portable which shipped in November
1982 is generally credited
with the first legal MS-DOS compatible PC. AFAIK it
could not run PC-DOS
and those applications which depended upon certain IBM BIOS commands would
fail.
The first legal BIOS is generally considered to
be from Phoenix which
was announced in May 1984 and so far I have been unable to
determine its
first system deployments. FWIW Wikipedia points to HP, Tandy and AT&T as
some time adopters of a Phoenix BIOS but my research so far is that Tandy s
T1000 family announced in October and November of 1984 was the first system
to be PC-DOS compatible and it did not use a Phoenix BIOS! Such PC-DOS
compatible HP and AT&T systems were much later and the Tandy BIOS was
written by programmers of Tandon Corporation, the OEM supplier of the first
Tandy T1000s.
Can anyone identify a PC-DOS compatible PC
announced earlier than
October 1984? Citations would be greatly appreciated.
Thanks
Tom