So if a program needs to wait 10 seconds for something, how it is actually calculating it if the processors speed continously changes? (And i’m talking about offline programs that does not use NTP)
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There is a type of rock which when hit with electricity begins to vibrate. And it always vibrates with the same speed. This tiny rock (crystal) is part of every computer.
Programmers pre-set how many times is this crystal supposed to vibrate in a second. So programs can just count the vibrations and know when a second has passed.
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