Which one of the following is an optical storage device ?

Floppy disk

Hard disk

CD-ROM

Magnetic tape

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Answer is Wrong!

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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CD-ROM (Compact Disc Read-Only Memory) is an optical storage device.

– Optical storage devices use lasers to read and write data on a storage medium (like a disc).
– Floppy disks and hard disks are magnetic storage devices, using magnetic properties to store data on a surface.
– Magnetic tape is also a magnetic storage medium, typically used for backup and archiving.

Examples of optical storage devices include CD-ROM, CD-R, CD-RW, DVD, and Blu-ray. These discs store data as microscopic pits and lands that are read by a laser.

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