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Difference between primary memory and secondary …

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Difference between primary memory and secondary memory?
  • 1 answers

Yogita Ingle 4 years, 2 months ago

  • Primary memory is also called internal memory whereas Secondary memory is also known as a Backup memory or Auxiliary memory.
  • Primary memory can be accessed by the data bus whereas Secondary memory is accessed by I/O channels.
  • Primary memory data is directly accessed by the processing unit whereas Secondary memory data cannot be accessed directly by the processor.
  • Primary memory is costlier than secondary memory whereas Secondary memory is cheaper compared to primary memory.
  • Primary memory is both volatile & nonvolatile whereas Secondary memory is always a non-volatile memory.
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