What is the computer's clock generating device called?

The clock generating device of a computer is called a "crystal oscillator". The crystal oscillator has a piezoelectric effect, that is, the crystal will deform when a voltage is applied to the two poles of the wafer. Conversely, if an external force deforms the wafer, the metal sheets on the two poles will generate voltage; if an appropriate alternating voltage is applied to the wafer, the wafer will Resonance will occur.

#The operating environment of this article: windows10 system, thinkpad t480 computer.

The clock generating device of a computer is called a "crystal oscillator".

Some electronic equipment requires AC signals with highly stable frequency, but the LC oscillator has poor stability and the frequency is easy to drift (that is, the frequency of the generated AC signal is easy to change). A special component, a quartz crystal, is used in the oscillator to produce a highly stable signal. This oscillator using a quartz crystal is called a crystal oscillator, or crystal oscillator for short.

Crystal oscillator is one of the most commonly used electronic components in electronic circuits. It is generally represented by the letters "X", "G" or "Z" and the unit is Hz.

The crystal oscillator has a piezoelectric effect, that is, the crystal will deform when a voltage is applied to the two poles of the chip. Conversely, if an external force deforms the chip, the metal sheets on the two poles will generate voltage. If an appropriate alternating voltage is applied to the wafer, the wafer will resonate (the resonant frequency is related to the inclination angle of the quartz bevel, etc., and the frequency is constant). The crystal oscillator uses a crystal that can convert electrical energy and mechanical energy into each other. Working in a resonance state can provide stable and accurate single-frequency oscillation. Under normal working conditions, the absolute accuracy of the ordinary crystal oscillator frequency can reach 50 parts per million. Using this characteristic, the crystal oscillator can provide relatively stable pulses and is widely used in clock circuits of microchips. The chips are mostly made of quartz semiconductor material, and the outer casing is encapsulated in metal.

Crystal oscillators are often used in connection with motherboards, south bridges, sound cards and other circuits. The crystal oscillator can be compared to the "heartbeat" generator of each board. If there is a problem with the "heartbeat" of the main card, it will definitely cause failure of other circuits.

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