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The Webmaster Dictionary
Optical Disc |
A disk in which light is the medium used to record and read data.The disk is made of clear polycarbonate plastic, covered with a layer of dye, a thin layer of gold which reflects the laser beam, and a protective layer over that.A recording is made by sending pulses from a laser beam which make a pattern in the layer of dye.The recording is read later by directing a laser beam at the disk and interpreting the pattern of reflected light.
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| Semi Related Terms: 203 CLICK HERE TO VIEW |
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