28 Feb
2013
28 Feb
'13
4:33 p.m.
On Feb 28, 2013, at 4:24 PM, Ethan Dicks wrote:
On Thu, Feb 28, 2013 at 3:11 PM, Fred Cisin <cisin
at xenosoft.com> 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
On Thu, 28 Feb 2013, Cindy Croxton Electronics
Plus wrote:
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. 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.