(Just reaching the Internet/Shuttle thread :)
The best information I have suggests that the Space
Shuttle does not
use the Honeywell DDP-516 in any capacity, and that engine control is performed
by the some of the IOP processors that are part of the IBM AP-101S
computers. The entire AP-101S, including both the GPC and IOP, occupies
about 0.025 cubic meters, masses about 30 Kg, and consumes about 550 W.
A DDP-516 occupies about 2.5 cubic meters, masses about 250 Kg, and consumes
over 1000 W.
AFAIK the first generation of rocket controll computers
(thrust, angle, etc.) had HDC-601 processors (with plate
wire core mem), And if I'm not completly wrong, the HDC-601
is a DDP-516 compatible system. I don't know if the shuttle
engines have been equipped with them, since the actual
controlers are (since the mid 80s) are based on 68.000
And for the AF-101, I always belived the last core mem unit
was named AF-101F not B, as mentioned in another message. In
fact, I love the idea of using a /370s design CPU - It's just
the best OPcode design ever :)
BTW, does anybody know if a new design is planed ?
Ich denke, also bin ich, also gut