COMPUTER FUNDAMENTALS

COMPUTER ARCHITECTURE

SECONDARY STORAGE DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the capacity of Optical Discs for CD format?
A
500MB
B
300MB
C
700MB
D
None of the above
Explanation: 

Detailed explanation-1: -A CD can store up to up 700 megabytes (MB) of data. A single-layer DVD can hold 4.7 gigabytes (GB) of data, and a double-layer disk can hold 8.5 GB. A single-layer Blu-ray disk can store 25 to 33.4 GB of data, and a quad-layer Blu-ray disk can store up to 128 GB of data.

Detailed explanation-2: -Their main reason for doing this was to allow the continued production of 700 MB disk for the already existing base of CD players. The next time they upgraded the storage on the CD (or DVD) it became the BlueRay disk. So there are “CD-ROM” disk that hold more than 700 MB.

Detailed explanation-3: -A CD-ROM (compact disc read-only memory) is a type of optical disc that users can read but not write or erase. They typically hold from 650MB to 1GB of data.

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