Question

what is CD................​

Answer 1

Answer:

Compact disc is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. The format was originally developed to store and play only digital audio recordings but was later adapted for storage of data.

Answer 2

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➡Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. Standard CDs have a diameter of 120 millimetres (4.7 in) and are designed to hold up to 74 minutes of uncompressed stereo digital audio or about 650 MiB of data.