[FoRK] A thought on Design and Quality

Dave Long dave.long at bluewin.ch
Thu Oct 8 04:40:56 PDT 2009

> 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/ .

Now that was an interesting system.

When I was bringing up the C development environment, the kernel  
hackers would introduce crash bugs every now and then into our  
development environment.  But the results were not drastic: usually  
it was a simple matter of going to get a cup of coffee, and returning  
to find that one's editing session -- running a standard IBM OS  
inside a hosted VM -- had been mostly restored.

A little after I'd left for school they finally got it ported from  
the original machine-room mainframe incarnation, and on workstations  
the resulting persistence demo was fairly impressive: in order to  
force a reboot, they'd simply pull the plug out of of the wall.  Not  
only does using the power cable save keyboard space for an "attention  
key", but it's a little difficult for applications to intercept...

"A computer's attention span is only as long as its extension cord"


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