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Touch Screen ppt Seminar Free Download


 
       The  touch screen was derived from the digitizing tablet. The digitizing tablet was invented by Sam Hurst in 1971. It was designed to allow scientists to record data from graphs by placing the graph on the tablet and pressing the paper against the tablet with a stylus.
 What is Touch Screen
žA touch screen is an Electronic Visual Display that responds when it detects a touch on its Surface
Advantages: 
žIt requires little thinking and of direct manipulation.
ž fastest pointing device.
ž It have easier hand eye coordination.
 
 
 
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