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CBSE Class 11 Informatics Practices Question 42 of 100

Computer System — Question 18

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18
Question

Question 18

Which optical media uses blue laser technology to read and write data on the media surface?

  1. DVD
  2. CD
  3. DVD-ROM
  4. Blu-ray Disc
Answer

Blu-ray Disc

Reason — A Blu-ray Disc (BD) is a high-capacity optical disc medium developed for recording, rewriting and playing back high-definition video. It uses blue laser technology, which allows for storing large amounts of data at greater density.