Multiple choice

In which of the following storage devices recording is done by burning tiny pits on a circular disk?

  1. Punched card

  2. Floppy disk

  3. Magnetic tape

  4. Optical disk
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Optical disks (CDs, DVDs) store data by burning microscopic pits onto a circular disk using laser technology. This is fundamentally different from magnetic storage (floppy disks, tapes) or punch cards. Option D correctly identifies optical disks as using this pit-burning method.

Keep practicing — related questions