FUNDAMENTALS OF COMPUTER

COMPUTER HARDWARE COMPONENTS FUNCTIONS

EXTERNAL AND INTERNAL STORAGE DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two differences between CD-R/DVD-R and CD-RW/DVD-RW
A
CD-R/DVD-R are only record-able once and are used for Read Data only
B
CD-R/DVD-R holds more better quality videos and imaged
C
CD-RW and DVD-RW allows for data to be written, erased and rewritten many times
D
CD-RW and DVD-RW are cheaper than CD-R/DVD-R
Explanation: 

Detailed explanation-1: -Today there are available both DVD-RW and CD-RW which are rewritable which means you can record and then erase them to use them again for storage. However, even DVD-R and CD-R have limited life and you cannot keep on writing on them. CD-R is a writable CD that can hold data up to 700 MB or 80 minutes of audio.

Detailed explanation-2: -The main difference between a CD-R and a CD-RW is that the CD-R can only be recorded to once, while a CD-RW can be recorded to multiple times, like a hard drive.

Detailed explanation-3: -CD–Read Writable (CD-RW) refers to an optical CD that may be written and rewritten multiple times. CD-RW allows for data erasing during each rewritable session. However, data cannot be changed during CD-RW sessions.

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