FUNDAMENTALS OF COMPUTER

COMPUTER HARDWARE COMPONENTS FUNCTIONS

COMPUTER SYSTEM COMPONENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Tool in optical drive that reads information
A
needle
B
laser
C
tape
D
sensor
Explanation: 

Detailed explanation-1: -In computing, an optical disc drive is a disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs.

Detailed explanation-2: -An optical disk drive uses a laser beam to read the data from the disk as it is spinning.

Detailed explanation-3: -Conventional optical technologies such as CD, DVD and magneto-optical (MO) drives write data using red lasers.

Detailed explanation-4: -Data Is Recorded as Pits on the Inner Face of Discs When CD data is read, laser light is focused through the clear plastic layer, and data gathered by reading the differences in reflected light intensities from the aluminum layer caused by the pits.

Detailed explanation-5: -Learn about this topic in these articles: The optical disc makes use of laser technology: digital data are recorded by burning a series of microscopic holes, or pits, with a laser beam into thin metallic film on the surface of a 43/4-inch (12-centimetre) plastic…

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