MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-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.

Detailed explanation-2: -Both CDs and CD-ROMs are types of optical discs that use a laser beam to read the data stored on them. However, while CDs are primarily used for audio content and can be written to, CD-ROMs are used for storing and distributing data such as software and can only be read.