A

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Q. Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information?

  • (A) Optical disk
  • (B) Permanent disk
  • (C) Hard disk
  • (D) Floppy diskette
  • Correct Answer - Option(C)
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  • Filed under category Computer
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Explanation by: Admin

(A) Optical disk: Uses laser technology (e.g., CD, DVD), not magnetic disks.

  • (B) Permanent disk: Not a standard term in computer hardware.
  • (C) Hard disk: Correct – It uses rigid, permanently installed magnetic disks to store data.
  • (D) Floppy diskette: Uses magnetic storage but is removable and flexible, not rigid or permanently installed.

Conclusion:

Hard disk is the storage device described, so the correct answer is (C) Hard disk.

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