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So when the third round began, Bruce Wright and I were 
     on one side of a table, and Ken Thompson and someone else 
     from Bell Labs (who years later I realized was Brian 
     Kernighan), were on the other. I noticed that when Ken 
     Thompson logged on, the Bell Labs computer printed:

               Chess tonight, please don't compute.
 
     I mentioned that that was really neat to be able to get the 
     comp center to put out a notice like that. He said something 
     non-commital in response.