On Tue, Jul 14, 2015 at 3:28 PM, tony duell <a...@p850ug1.demon.co.uk> wrote: > If you mean 6 different clock sources (i.e. clocks delayed from each other, > etc) then that > is not typical of a 1970s minicomputer in my experience.
IIRC, the KB11 processors used in the DEC 11/45 and 11/70 (and other related systems) used five "clocks delayed from each other" (more commonly known as clock phases). In my experience that was more common in 1970s computers than a single-phase clock.