Modern computers have very high clock speeds, but old computers had slower and slower clocks as their electronics needed more time to switch states. Some researchers believe that the Z3, a computer made in Germany during World War 2, used a cuckoo clock and needed to be wound up twice a day.
A brief history of old computers | Jacobo Tarrío
It is impossible to tell when the first old computer was made because, as it turns out, all computers were new when they were made. Well, except, perhaps, for the original IBM PC, which already looked old back in 1981. Not everyone is of the same opinion, of course: some people say that it's ...
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