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Friday, April 2, 2010

Is it possible for computers to tell time without a built in clock?

Programmer Question

Computers keep time normally with a built in clock on the motherboard. But out of curiosity, can a computer determine when a certain interval of time has passed?



I would think not as a computer can only execute instructions. Of course, you could rely on the computer knowing its own processing speed, but that would be an extremely crude hack that would take up way too many clock cycles and be error prone.



Find the answer here

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