CD was initially developed for sound recordings and storage only. Later on as technology evolved, a CD was enabled to store chunks of data in its disk. CD then came to be known as CD -ROM (Compact Disk-Read Only Memory). The data stored has the read operation only but not the write operation. What is the full form of CD and DVD? CD is Compact Disc ( CD ) DVD is Digital Versatile Disc (DVD) For long-term data and information storage in computers, various secondary storage devices, including CDs, DVDs, HDDs, etc. The operation of optical storage systems like CDs and DVDs is based on optical effects. Red LASER is used for read and write operations on CD and DVD. They do, however, differ greatly from one another in several ways. CD Full Form pops into the mind of anyone curious about old-school digital storage. CD Full Form stands for Compact Disc, the shiny round thing that once dominated music, movies, and computer backups. The full form of CD provides clarity on its meaning in different fields. In technology, it stands for Compact Disc, an optical storage medium for audio, video, and data files.