COMPUTER FUNDAMENTALS

COMPUTER ARCHITECTURE

SECONDARY STORAGE DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of storage uses lasers to write the data?
A
Optical
B
Magnetic
C
Solid State
D
All types
Explanation: 

Detailed explanation-1: -Optical storage is any storage type in which data is written and read with a laser. Typically, data is written to optical media such as compact discs (CDs) and digital versatile discs (DVDs).

Detailed explanation-2: -Optical data storage is the use of light to write and read information to and from a memory device. Storage can be achieved by using lasers to pattern a surface, such as on a compact disc, or altering the physical properties of a small volume inside a light sensitive material.

Detailed explanation-3: -Six categories of optical media are available to meet most storage requirements: CD-ROM, DVD-ROM, DVD-RAM, recordable media, write-once read-many (WORM) optical cartridges, and erasable optical cartridges. CD-ROM is a read-only format that is optimized for read performance.

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