optical disk

2 definitions found

optical disk - Collaborative International Dictionary of English v.0.48 :

  laser disk \laser disk\ n.
     A digital data storage medium consisting of a thin disk onto
     which the data is impressed by a laser, in the form of a
     linear sequence of dots; same as optical disk. The data is
     subsequently read back by the use of a laser beam. See also
     compact disk.
  
     Note: The original disk may be created by use of a laser, but
           copies of the original disk may be created by a
           replicating process which does not itself require a
           laser.
           [PJC]

optical disk - WordNet (r) 2.1 (2005) :

  optical disk
      n 1: a disk coated with plastic that can store digital data as
           tiny pits etched in the surface; is read with a laser that
           scans the surface [syn: optical disk, optical disc]