How is information stored and recived from a CD?

Information on a CD is stored as tiny indentations, or pits, on the surface of the disc, which represent binary data. A laser in the CD player reads these pits and the flat areas between them (lands) as it spins the disc. The variations in reflection caused by the pits and lands are converted into electrical signals, which are then processed to retrieve the stored information, such as music or files. This process allows for accurate data retrieval and playback.