Clocks Were The World's First Computers.

No the Abacus was not the original of modern computers. Clocks were.   Just the layout of a clock with its measurement of periods of time was a computational device.  Would work with sundials and water clocks not just mechanical rotary clocks.   With a clock that sets any unit time period you can add time or subtract it . You can have 15 before 2 and 14 after 2.  With a clock you can add subtract, multiply and divide.    What is a half an hour?  Computation is counting.  As synthetic as time is so is mathematics.