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Q: Which of the following is a part of the central processing unit of a computer?
  • A. Mouse
  • B. Scanner
  • C. Register memory
  • D. Joystick
Correct Answer: Option C - Register memory is the smallest and fastest memory in a computer. It is not a part of the main memory and is located in the CPU in the form of registers.
C. Register memory is the smallest and fastest memory in a computer. It is not a part of the main memory and is located in the CPU in the form of registers.

Explanations:

Register memory is the smallest and fastest memory in a computer. It is not a part of the main memory and is located in the CPU in the form of registers.