| CRT (Cathode Ray Tube) is a method of firing electrons from a tube onto phosphors on the front of a TV or monitors display. When the phosphors are hit they light up and the result is then projected onto the screen in a mixture of blue, green and red. As the electrons are magnetically guided you can get interference on the screen if there are any magnetic devices nearby. LCD displays are now replacing CRT as they don't have the problem with magnetic interference and they are thinner. |
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