Homonym: CD (Certificate)
A "CD," or Compact Disc, is a small, round disc used to store digital data, primarily music. Introduced in the early 1980s, CDs revolutionized how we listen to music by providing a clear, high-quality sound compared to previous formats like vinyl records and cassette tapes. They can hold up to 80 minutes of audio and are played using a CD player.
In addition to music, CDs can also store other types of data, such as software and photos. Although digital downloads and streaming services have become more popular, many people still enjoy collecting CDs for their artwork and physical presence, making them a cherished part of music history.