[FoRK] A thought on Design and Quality

Benjamin Black b at b3k.us
Wed Oct 7 08:37:05 PDT 2009


rst at ai.mit.edu wrote:
> 
> Though there were, of course, software packages written this way
> before the Stanford guys.  The most famous example might be the
> control software for the fly-by-wire Apollo LEM.  The infamous 1202
> and 1201 alarms that it was spitting up all the way to touchdown on
> the first lunar landing were both variations on the theme "internal
> overflow --- rebooting now".  The software was crashing continually,
> but a quick built-in reboot sequence got it running again before it
> could crash the hardware.
> 

love the apollo reference!  i had not heard of that before.  this old
thing might also be of interest to folks:
http://www.cis.upenn.edu/~KeyKOS/ .


b



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