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All computers, and electronic devices for that matter, require a direct current (DC). Any electricity coming from a wall socket is what's called AC or an alternating current because it oscillates back and forth very rapidly. Computers require a very constant and steady stream of electricity and so it must convert the power from an outlet from AC to DC before it can be used. That's why there are capacitors on the motherboard to steady and even out power while changing it from AC to DC.

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15y ago
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11y ago

All computers and electrical equimpment require a direct current or DC.

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Q: What type of electrical current does a computer need to function?
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