COMPUTER FUNDAMENTALS

COMPUTER HARDWARE

STORAGE DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two disadvantages of CD ROM
A
Data transfer rate is slower compared to other storage medium
B
Not Robust-easily be damaged or scratched.
C
Have many moving parts like HDD
D
Not portable
Explanation: 

Detailed explanation-1: -Advantages and Disadvantages of CD-ROM For the advantages: it is easy to use, easy to move, cheap, and has a long life. For the disadvantages: It is easy to be damaged, non-modifiable, and keep limited data.

Detailed explanation-2: -Fingerprints, smudges, dirt, or dust on the laser reading side of the disc can disrupt laser focus on the data even more than a scratch can. Dirt or dust on the disc will block or reduce the light intensity of the laser. If severe enough, it will cause the disc drive to miss data as the disc is being read.

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