Which component is often referred to as the "brain" of the computer?

Which component is often referred to as the "brain" of the computer?

  1. a) Hard Drive
  2. b) Central Processing Unit (CPU)
  3. c) RAM
  4. d) Power Supply Unit

From the Combined Bank Officer (IT) January 2026 – Written (BIBM) exam, question 12 of 115.

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