laser disk


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laser disk

a plastic disk that stores computer data as tiny pits etched in the surface. A laser beam scanning the pits translates the data into a computer language. Laser disks are frequently used for computer-assisted instruction.
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In 1972 laser disks (also called compact disks) became practical.
Preprogrammed laser disks literally squeeze an entire accounting library onto a few feet of shelf space and make all the information available at the touch of a button.
Previously the audio and motion control were handled by multiple pieces of equipment utilizing tapes, CD ROMs or laser disks for information storage and playback.

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