Weekly Classic Computer Trivia Question (20141226)

Pontus Pihlgren pontus at Update.UU.SE
Fri Dec 26 17:18:54 CST 2014

On Fri, Dec 26, 2014 at 02:57:59PM -0700, Doug Ingraham wrote:
> This one is seemingly easy.
> On the front panel of the original PDP-8 (straight 8), how many lights are
> there?

I'll try from memory. There are rows for MA+EMA, MQ, AC+link, MB and PC. That is 
12 bits for each row plus 4. Then there are 8 lights indicating which instruction 
is executing. Surely there is a run light..

I'm guessing 72 lights.


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