what is CR - ROM ? how the data is stored in it ?
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Short for Compact Disc Read-Only Memory, a CD-ROM is an optical disc that contains audio or software data whose memory is read-only. A CD-ROM Drive or optical drive is the device used to read them. A CD-ROM drive cannot read a DVD, including movie DVDs and data DVDs. ...
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Explanation:
Data is stored on the disc as a series of microscopic indentations. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands ("pits", with the gaps between them referred to as "lands").
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