CD-ROM(redirected from 50x CD-ROM)
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abbreviation for compact disc-read only memory.
CD-ROMCompact disk-read only memory Informatics A compact disk, capable of holding ± 750 MB of permanent data, which is recorded or burned only once. Cf CD-RW.
n the acronym for compact disk/read-only memory. These disks are used to store program information (software) for computer programs. Information and instructions can be retrieved from these disks, but information cannot be added or revised without destruction of the existing data.