Showing posts with label CD. Show all posts
Showing posts with label CD. Show all posts

Wednesday, June 13, 2012

Factoons. Brainwave. 13th June

Ever wondered why the process of recording on a disc is referred to as burning? The information on a disc is recorded in digital form, represented by a series of 1s and 0s. A disc has a thin reflective metal sheet with a translucent dye layered on top. The CD burner is equipped with a powerful 'write laser' that burns the translucent dye to make it opaque. The parts which are opaque block the light from reflecting off the metal sheet, giving it a digital value of 0, and the parts which are left translucent get a value of 1. This is how data is burnt on a CD!