Computer Case - Protect the internal components , Central Processing Unit (CPU) - Perform calculation and basic instruction of a computer, Motherboard - Allow devices to communicate with the CPU and each other , System Memory / RAM - Stores program and data that currently used by the CPU, Power Supply - Provides electrical power to PC components and convert AC to DC current, Hard Drive  - Store programs and data that not currently in use by the CPU,

The function of the PC component

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