On 10/23/2018 6:18 PM, Chuck Guzis via cctalk wrote: > Dunno. I'd say that the CDC 6000 seies machines had pretty good code > density, and of course, ran like the wind. > > Instructions are 15 or 30 bits and no condition codes to preserve. Most > are 3-address. > > And a very simple instruction set. > > --Chuck With NO GUI and hidden IO, you get speed. Ben.