[Coco] Jingo - Jango - Mars

[David Hazelton]

Theodore (Alex) Evans wrote:

> On Jan 15, 2004, at 9:35 AM, Roger Taylor wrote:
> 
>> At 11:51 AM 1/15/2004 -0500, you wrote:
>>
>>> Now theres a thought.  I've been told that for a while at least, the
>>> shuttle computers were 6809 machines running os9.  Can anyone
>>> confirm/deny that?
>>
>>
>> Oh, "GIME" a break.
> 
> 
> <lol>
> 
>> That stemmed probably from a short comment somewhere about some form 
>> of OS-9 being used somewhere on the shuttle, and I have never even 
>> found proof in any of it.  The shuttle is loaded with high-speed 
>> computer equipment, and I highly doubt are beloved 6809 plays any 
>> major response-intensive role.  If OS-9 ran the coffeemaker, I would 
>> be totally surprised.
> 
> 
> Consider that the Shuttle is a late 1970s early 1980s design.    I have 
> never heard anything dependable about the shuttle using OS-9, but it did 
> (whether it still does or not is another question) use three redundant 
> 6809 based systems for its flight computer.  The B-1's systems were 
> designed around IIRC eight 6809 based computers.
> 
> 
I heard, but can't remember where, that the Fueling Sensors were 
monitored under OS-9.  Simple stuff like if there is Oxygen where there 
wasn't supposed to be Shutdown Fueling NOW!!!!!.    Such things that 
needed to be interrupt driven not Queued.

Of course, I could be wrong.

~David Hazelton