Multiple choice general knowledge science & technology

What is the unit of the PC which supplies power called?

  1. PSI

  2. SMPS

  3. SPO

  4. Motherboard

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

SMPS (Switched-Mode Power Supply) is the component that converts AC power from the wall outlet into stable DC voltages (3.3V, 5V, 12V) needed by PC components. PSI measures pressure, SPO is not a standard PC term, and the motherboard is the main circuit board, not the power supply.