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Microprocessors & MicrocontrollersCPU Architecture

The accumulator in many classic microprocessors is mainly used to?

  • AHold operands and arithmetic/logic results
  • BStore the entire operating system
  • CGenerate address-bus timing only
  • DReplace ROM permanently
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Correct Answer: A. Hold operands and arithmetic/logic results
Explanation: The accumulator is a central register used by many arithmetic and logic instructions.
Reference: Standard microprocessors and microcontrollers: cpu architecture
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