Multiple choice general knowledge

Which of the below is not related to power?

  1. PIO

  2. Surge

  3. UPS

  4. VRM
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Power management and protection devices include Surge protectors (protect from voltage spikes), UPS (Uninterruptible Power Supply provides backup power), and VRM (Voltage Regulator Module manages CPU voltage). PIO (Programmed Input/Output) is a data transfer protocol between CPU and devices, completely unrelated to power.

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