Question

Which technology is used in CDROM Drive :

• A. Mechanical
• B. Electromechanical
• C. Optical
• D. Fiber optical

Answer 1

Answer:

C. Optical

Optical

CD-ROM drives use optical technology, specifically a semiconductor laser and a photodetector, to read data encoded as microscopic pits and lands on the reflective surface of a compact disc.
CD-ROM drives use a laser beam to read and write data. The laser light is shone onto the microscopic pits and lands on the surface of the disc, and the reflected light is detected and converted into digital data. Therefore, it relies on optical technology.