Optical discs use these to represent data.
A) Analog signals
B) Magnetic charges
C) Pits and lands
D) Laser beams

Name: Optical discs use these to represent data. A) Analog signals B) Magnetic charges C) Pits and lands D) Laser beams
Brand: Quizplus
Rating: 4.9 (28 reviews)

Question

Quizplus · Accepted Answer

Optical discs use pits and lands on the surface of the disc to represent data. When a laser beam is directed at the surface of the disc, it reflects differently off of the pits and lands, which can be read by a laser reader and converted into digital data.

Optical Discs Use These to Represent Data