What does CD mean?

There are a few different meanings of CD, but in terms of technology, a CD is a type of optical disc that stores digital data. It was once a very popular way to store music, but has since been replaced by other formats such as digital downloads and streaming.

The Compact Disc was first developed by Sony and Philips in the early 1980s, and it was released to the public in 1982. The format was designed to replace the vinyl record, and it was marketed as a way to store high-quality music that could be played …