Thursday, March 8, 2012

Touch Screen

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Touch Screen is a Display Screen that has a touch-sensitive transparent panel covering the screen is known as touch screen. In Touch Screen, A grid of light beams or fine wires criss-cross the compiler screen . When you touch the screen with your finger , The ray are blocked and the computer sense where you have pressed and thereby identifies the object which you want to choose. They are often used as input devices in public places such as ATM, Airport, Travel Agencies.
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