Compact discs (CDs) digitally store music and other data as tiny depressions coated with a fine film of metal. The information is read by a laser light that reflects from the depressions,allowing the original data to be reconstructed. The outer plastic layer of the disc prevents damage from dust and scratches | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Sambraus, Daniel |
Taille de l’image : | 3562 px × 2362 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |