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What is the primary role of registers in a computer system ?

  • A.Store data temporarily during program execution
  • B.Perform complex computations
  • C.Store long-term data
  • D.Manage data transfer between I/O devices

Answer: A

Registers store data temporarily during program execution.

Registers are small, very fast storage locations inside the CPU that hold the operands, results, addresses and status information the processor is working on at that moment.

Computation is done by the ALU, long-term storage is the job of secondary memory, and data transfer to I/O devices is managed by I/O controllers and the OS, not by registers.

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