Which of the following is not a main component of a CPU?

Which of the following is not a main component of a CPU?

  1. a) Control unit
  2. b) ALU
  3. c) Cache
  4. d) Registers

From the BCS Technical Cadre (ICT) October 2025 – 49th BCS Written (Special) (BPSC) exam, question 7 of 106.

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