Clock Generator in a Microprocessor

A Clock Generator in a Microprocessor is a device that generates a steady, continuous signal which can be used to time the different circuits in a Microprocessor.

The signal produced by a Clock generator is usually a square wave.  The rising and the falling edge of the waveform is used to time the circuits.

A Clock generator usually consists of an oscillator circuit and an amplifier.  Quartz oscillators are preferred for their consistency (no drift) and stability.