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CD ROM Short of compact disk read-only memory, a compact disk that is used with a computer (rather than with an audio system); up to 650 megabytes of digital information can be stored and accessed but it cannot be altered by the user. A CD ROM consists of a thin, high-strength plastic disk which has a special coating on one surface. This surface contains an extremely thin spiral track that runs from near its center to close to the outer edge. Digital data is recorded in this track in the form of a succession of microscopic pits. This recording is done at the factory using a stamping process in the case of prerecorded CDROMs. It can also be done on blank disks by individuals by burning the pits with a high precision semiconductor laser beam on a CDROM recorder. Using Test My
Hardware to test Your CD
ROM |
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