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Any storage device added to a computer beyond the immediately usable main storage is known as

  • A.Floppy disk
  • B.Hard disk
  • C.Backing store
  • D.Punched card
  • E.None of the above

Answer: C

Correct answer: Backing store

Storage added beyond the immediately usable main memory is the backing store: it is non-volatile and far larger, but the processor cannot address it directly, so its contents must be brought into main memory before use. Floppy disks, hard disks and punched cards are particular examples of it.

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