28 Feb
2013
28 Feb
'13
7:33 p.m.
------------------------------
On Thu, Feb 28, 2013 4:33 PM PST David Riley wrote:
On Feb 28, 2013, at 4:24 PM, Ethan Dicks wrote:
And unless I'm mistaken, Autocad ran on a cga equipped 5150 through version 7 or 9. I
think it was 9 I got from the job. And all they had in my dept was the early 5150. Later
upgraded it to a hybrid 286.
On Thu, Feb 28, 2013 at 3:11 PM, Fred Cisin
<cisin at xenosoft.com> wrote:
On Thu, 28 Feb 2013, Cindy Croxton Electronics Plus wrote:
The original AutoCAD (for some degree of the term "original") was
developed for DOS on 8086 and CP/M-80 (plus early development for
the TI 9900). John Walker has a document-based history of
AutoCAD development here:
http://www.fourmilab.ch/autofile/
I think my favorite document is this one:
http://www.fourmilab.ch/autofile/www/section2_10_8.html
I'm still a little upset that we've ended up (OK, not ALL of us)
with the 8086 as the dominant processor of the computing world.
In any case, I would imagine that the DOS version of AutoCAD in
1982 wasn't using anything better than CGA. Some of the dev
notes for AutoCAD-80 note that work got done faster because the
CP/M port relied on more intelligent output devices that needed
less low-level control than the IBM and Victor 9000 ports.
- Dave I have never seen Autocad for a 5150, but there
are color games for the
5150, and if you have a color monitor, the games have code in them to set
the colors and resolution...
For some reason, CGA AutoCad never really caught on.
I'm sure there's very little if any CAD for CGA. The oldest program I
personally used was OrCAD, and that was in the 5170 PC-AT days, and
that was, IIRC, EGA, or at least that's what was on the machine I was
using it on.