Chuck Guzis wrote: Quite honestly, I didn't know what the time frame of the original question was--I did mention the Univac SS-80, however--and I did make reference to strange designs of the 50s. But "computer" isn't very specific. How about the hybrid computers of the 60s? How about the "mostly diodes and not a lot of transistor" machines like the PB250? Some parameters for the original question might be helpful. Cheers, Chuck ----------------- Chuck, I agree with you on all your points. And add the Recomp jukebox series to the all diode machines. They had less than 100 flip-flops per system! Billy