Computer Science, asked by gaskelkayst, 4 months ago

explain the writing and reading mechanism on CD ROM Drive​

Answers

Answered by nazz6412
0

Explanation:

A CD-ROM (/ˌsiːdiːˈrɒm/, compact disc read-only memory) is a pre-pressed optical compact disc that contains data. Computers can read—but not write to or erase—CD-ROMs.

CD-ROM

CD-ROM.png

A traditional CD-ROM

Media type

Optical disc

Encoding

Various

Capacity

194 MiB (8 cm), 650–900 MiB (12 cm)

Read mechanism

600-780nm laser diode, 150 KiB/s (1×), 10,800 KiB/s (72×)

Write mechanism

Pressed mold

Standard

ISO/IEC 10149[1]

Usage

Data storage

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Answered by honeyhansy321
1

Answer:

When reading a CD-ROM, a low power laser beam is focused on the rotating CD-ROM and its reflection is viewed by the read head. When the beam reflects back from the CD- ROM, it's intensity changes as it moves from "land" to "pits". These variations in the laser beam are decoded as data by the CD-ROM drive.

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