A CD, or compact disc, is a digital disc used for storing and playing audio, video, or data. It was introduced in the early 1980s and became popular for its ability to deliver high-quality sound and store a significant amount of data compared to previous formats. CDs are read by a laser in a CD player, which interprets the digital information encoded on the disc's surface. They are commonly used for music albums, software, and other media, though their use has decreased with the introduction of digital downloads and streaming services.

What is a "CD"?

Définition et signification de « compact disc » en anglais

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