Differences between primary memory and secondary memory.

Primary Memory Secondary Memory
  • Primary memory stores the programs to be executed, holds the input data that is to be processed and the intermediate results of any calculation when the processing is being done.
  • secondary memory is used for mass storage or data, information and programs.
  • Data or information in primary memory are temporary.
  • data or information stored in a secondary memory are stored permanently
  • The capacity of primary memory is lesser than secondary memory.
  • the capacity of secondary memory is more than primary memory.
  • Primary memory is faster than secondary memory.
  • Secondary memory is slower in comparison with primary memory.
  • Primary is costly than secondary memory.
  • Secondary memory is cheaper than primary memory.

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