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For reading the disks DVD uses

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in Microprocessor by (39.4k points)
For reading the disks DVD uses

(a) blue laser

(b) white laser

(c) red laser

(d) green laser

This question was addressed to me in an interview.

This intriguing question originated from High Storage Capacity Memory Devices topic in division DMA, Floppy Disk and CRT Controllers of Microprocessor

1 Answer

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by (49.2k points)
Correct answer is (c) red laser

Best explanation: A DVD is an optical disk that uses a red laser for reading the disks.

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