COMPUTER HARDWARE
STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Music
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Games
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ROM Data
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Films
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Detailed explanation-1: -A Compact Disc (CD) is an optical disc used to store digital data, originally developed for storing digital audio. The CD, available on the market in late 1982, remains the standard physical medium for commercial audio recordings as of 2006.
Detailed explanation-2: -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. Capacity is routinely extended to 80 minutes and 700 MiB by arranging data more closely on the same-sized disc.
Detailed explanation-3: -Data is stored on the disc as a series of microscopic indentations called “pits", with the non-indented spaces between them called “lands". A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands.
Detailed explanation-4: -An optical disc uses laser light to read and write data include CD, DVD, and Blue-ray discs.