Relationships Narrower Term:  compact disc LaserDisc write once read many Related Term:  videodisc n. ~ A platter used to store large quantities of data that can be read using light. Notes:  Data may [..]

a high-capacity storage medium that is read by a laser light.

A flat, circular, plastic disk coated with material on which bits may be stored in the form of highly reflective areas and significantly less reflective areas, from which the stored data may be read when illuminated with a narrow-beam source, such as a laser diode. Note: The bits are stored sequentially on a continuous spiral track.

A storage medium from which data is read and to which it is written by lasers. Optical disks can store much more data -- up to 6 gigabytes (6 billion bytes) -- than most portable magnetic media, such [..]

A high-density direct access storage medium consisting of a specially coated disk on which data is encoded in a pattern of tiny pits burned into the surface with a laser, to be read by a device that r [..]

An optical disk is any computer disk that uses optical storage techniques and technology to read and write data. It is a computer storage disk that stores data digitally and uses laser beams (transmit [..]

An unalterable optical storage medium that allows large amounts of data to be permanently written to it. An optical disk is read using laser and magnetic technology and has a useful life span of 100 plus years.

A high-density platter-shaped storage medium on which digital information is recorded by altering the light reflectance properties of selected areas. Data is written and read by laser beams, and is randomly accessible. Optical disks are available in erasable and non-erasable formats. See also Compact disk.