In a microcomputer WAIT states are used to:

In a microcomputer WAIT states are used to:
1). Make the processor wait during the DMA operation
2). Make the processor wait during a power interrupt processing
3). Make the processor wait during a power shutdown
4). Interface slow peripherals to the processor
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Answers 3

  • Computer microprocessors generally run much faster than the computer's other subsystems
  • When the processor needs to access external memory, it starts placing the address of the requested information on the address bus
  • It then must wait for the answer, each of the cycles spent waiting is called a wait state
  • Thus, wait states helps to interface slow peripherals to the memory
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wait states helps to interface slow peripherals to the memory.
 
Hence Option (4) is the correct answer.
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