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Question 78Asked in BPSC TRE 2.0 (2023) Computer Science Class 11-12

Which of the following contains a laser?

  1. ACD Drive
  2. BRAM
  3. CHard Disk Drive
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (A) CD Drive

Explanation

A CD drive reads and writes the disc with a laser beam, which is why it is an optical drive. A hard disk uses magnetic heads, and RAM is electronic.

From BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper

This is question 78 of BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.