Question

write a short note on cd?​

Answer 1

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Compact disc (CD), a molded plastic disc containing digital data that is scanned by a laser beam for the reproduction of recorded sound and other information. Since its commercial introduction in 1982, the audio CD has almost completely replaced the phonograph disc (or record) for high-fidelity recorded music.

Answer 2

CD(Compact disc):-

It is secondary storage device that has a high storage capacity and is relatively cheaper. A standard 120mm CD holds 700MB of information with approx. The process of writing on a CD is called Burning.