MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched-mode power supplies.

Detailed explanation-2: -The source power may come from the electric power grid, such as an electrical outlet, energy storage devices such as batteries or fuel cells, generators or alternators, solar power converters, or another power supply.

Detailed explanation-3: -By definition, a power supply is a device that converts the output from an ac power line to a steady dc output or multiple outputs. The ac voltage is first rectified to provide a pulsating dc and then filtered to produce a smooth voltage.

Detailed explanation-4: -The computer’s power supply unit (PSU) converts the alternating current (AC) electricity from a wall outlet into direct current (DC) electricity, which is used by the computer. The DC electricity is used to power the computer’s motherboard, which contains the processor, memory, and other components.