On May 10, 12:32*pm, "Jorge R. Frank" wrote:
James Of Tucson wrote:

At one time, the GPCs were based on a Motorola 68000, but a special
one that was designed for the space program.
That one ran OS-9. *It was actually the second generation GPC, in
84.

No. The GPCs have always been from the IBM AP-101 family. They started
out as AP-101B and were upgraded to AP-101S starting in 1991. The S has
more memory and has the IOP integrated into the CPU, while the B had
separate CPUs and IOPs.

The AP-101 family never used Motorola microprocessors. The AP-101 is
binary-compatible with the IBM System/360 series.

The OS on the shuttle AP-101 GPCs has never been OS-9. The PASS GPCs run
a custom OS called FCOS. I don't remember what the OS is called on the
BFS GPC but it wasn't OS-9.

See Jenkins, 3rd ed, pp 406-407 for discussion.

didn't notice it from your 1st post, Jorge, but saw it when James Of
Tucson responded to you.

yeah, you have 'ibm' in your email addy. we all know how you IBMers
fly by the seat of your pants, so i am sure you DIDN'T read the link i
posted when i started the thread. and, everyone knows how IBM does
not mind being involved in coverups, particularly when it involves ANY
government.

and, don't ANYONE forget, that IBM did business with the evil,
murderous Germains in world war II. 'nuff said!