Hardware - The clock (generator)
1 - About
Every computer contains an internal clock: the clock generator.
The clock generator is a circuit on the motherboard which produces the system clock signal to synchronize the various components.
The clock generator is often changed by computer enthusiasts to control the speed of their:
Typically the programmable clock generator is set by the BIOS at boot time to the value selected by the enthusiast, although some systems have dynamic frequency scaling that frequently re-program the clock generator.