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Yes. In older systems, the clock crystal speed either provided the direct clock for the front side bus, and everything else ran on a divider, or was double the speed of the front side bus. Modern systems use a single fixed crystal at 14.318 MHz, and everything runs at either a multiple or divider of that clock. Some components, such as network cards may have their own crystal. Most add-on cards also have an oscillator crystal.

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15y ago

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It is not a device. There is, however, a backup battery on the motherboard that can keep the clock running in lieu of an internet connection to sync to.

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16y ago
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No.

A clock is a display.

It displays the course of time.

A computer computes, it makes calculations.

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10y ago
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Q: Does a computer have a clock crystal?
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