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UGC NET CSE | December 2011 | Part 2 | Question: 31

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CPU does not perform the operation

  1. Data transfer
  2. Logic operation
  3. Arithmetic operation
  4. All of the above
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Ans: A

A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

The form, design and implementation of CPUs have changed over the course of their history, but their fundamental operation remains almost unchanged. Principal components of a CPU include the arithmetic logic unit (ALU) that performs arithmetic and logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that orchestrates the fetching (from memory) and execution of instructions by directing the coordinated operations of the ALU, registers and other components.

ref: https://en.wikipedia.org/wiki/Central_processing_unit

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