Here's a breakdown:
* AC Power: The power from your wall outlet is alternating current (AC), which means the current constantly changes direction.
* DC Power: Most electronic components, including the motherboard, CPU, and GPU, require direct current (DC), where the current flows in one direction only.
* PSU's Role: The PSU takes the incoming AC power, steps down the voltage, and converts it to DC power at various levels. These levels are then distributed to different components within the computer.
The PSU is a crucial part of the system unit, ensuring that the computer receives the correct type and amount of power it needs to operate.
