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It has several names. The correct phrase is the 'CPU' or 'Central Processing Unit', sometimes called Processor for short.

It is NOT correct to call the entire computer chassis/case/tower (the big box thing, without monitor, keyboard, etc.) a CPU, or Processor, because the chassis/case/tower typically contains at least two processors and may have more than one dozen.

The CPU is the main processor, which is what you hear whenever someone talks about Intel and AMD, 'Gigahertz', 'Cores' and such. It's the most integral part of a system's function. Without it, NOTHING works.

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15y ago

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