Identify the device that reads data by reflected pulses of laser beams on the…
2017
Identify the device that reads data by reflected pulses of laser beams on the surface.
- A.
Magnetic disk
- B.
Floppy disk
- C.
Optical disk
- D.
Read only memory
Attempted by 198 students.
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Correct answer: C
An optical disk reads and writes data using a laser beam. The drive shines a laser onto the rotating disk's surface to detect microscopic pits and lands based on how the light reflects back, translating these reflections into binary data (0s and 1s). Thus, Option C is correct.