Question

what is optical disk???​

Answer 1

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 (transmitted from a laser head mounted on an optical disk drive) to read and write data.

Answer 2

An information storage device for a computer in shape of a round plate which can be rotated to give access to all parts of the surface.