![](http://www.alamy.com/thumbs/6/3CDE992E-AF85-44D4-8D13-2171D58C6C9F/2ACKHY0.jpg)
Reading a CD. Computer artwork of a laser being used to read a CD or DVD. The digital information (centre) on the disc is read by the laser (far left)
Reading a CD. Computer artwork of a laser being used to read a CD or DVD. The digital information (centre) on the disc is read by the laser (far left) and converted into an analogue signal (centre right) before being sent to the output source (not shown) where it is converted into sound (far right).
Size: 3728px × 2365px
Photo credit: © CLAUS LUNAU/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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