On 01/01/2018 12:00 PM, Paul Koning via cctalk wrote: > "Asychronous" does not mean the clock is skewed, it means the system operates > without a clock -- instead relying either on worst case delays or on explicit > completion signals. That used to be done at times. The Unibus is a classis > example of an asynchronous bus, and I suppose there are others from that era. > The only asynchronous computer I can think of is the Dutch ARRA 1, which is > notorious for only ever executing one significant program successfully for > that reason. Its successor (ARRA 2) was a conventional synchronous design.
I'm not certain, but I believe that the Philco System 2000 had parts of the CPU that operated asynchronously. At least that's what my failing wetware seems to indicate. --Chuck
