21 Sep
2008
21 Sep
'08
7:21 a.m.
I think a lot of this was done at Draper Lab, part of MIT then.
One person who worked on the code you are interested in was Richard Warren.
Steve
Dan wrote:
Randy Dawson wrote:
There is the ocasional homebuilt, TTL CPU thread
on here. I wanted
to make known this guy, John Plutorak, who reproduced the guidance
computer in his basement:
http://klabs.org/history/build_agc/
Awsome project, take a look. I intend to build one too...
I've seen this before and it's very interesting.
Here's a piece of trivia I picked up while researching material for my
last project at VCF east about Floating Point Math. I talked with
Frank O'Brian, the caretaker of the Apollo Guidance Computer exhibit
at InfoAge in NJ about this subject. He provided this tidbit of info
that I thought I could share here. While looking at the original code
listings for this computer, (at the exhibit) it's quite amazing how
they accomplished all this math within such a constrained environment
given the technology of it's day. I feel this would make some people
scratch their heads :)
What type of arithmetic operations were used to perform all the
calculations on the Apollo Guidance Computer ?
a) Floating Point arithmetic operations
b) Fixed Point Arithmetic operations
c) Integer Arithmetic operations
d) Slide Rule Arithmetic operations
e) all of the above
=Dan
[ Pittsburgh 250th --- http://www2.applegate.org/~ragooman/ ]