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(i). Have very high storage capacities. This enables them to be used for multimedia applications.
(ii). Have relatively high access speeds.
(iii). Are Non-volatile, i.e. information kept in them is permanent. Therefore, they are more secure against alteration.
(iv). Are cost effective (cheap) especially if used for large storage volumes.
(v). They are robust – they resist temperature, electromagnetic fields, and not affected by water or dust.
(vi). Have very high data transfer rates.
Modern CD-ROM drives have data transfer rates of between 150 – 4,800 KB/second.
(vii). Some Optical discs allow data to be written to them a no. of times, e.g., CD-RW.
Kavungya answered the question on April 2, 2019 at 07:06
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