What is the Diameter of Compact Disk?

A. 10 cm
B. 11 cm
C. 12 cm
D. None of these

Explanation:

Like the audio CD, the disc has a diameter of 12 cm and a storage capacity of 650 to 700 MB – equivalent to 450 floppy disks or more than 250,000 typed A4 pages. A CD-ROM allows fast data access and has very high reliability. This is why it is now universally used to store computer software and data.
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4 years ago

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