A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus/pen and-or one or more fingers. It has wide applications; most of them are used in smartphones and tablets. Apart from these, they are used in ATMs, kiosks, POP devices, retail signage, transportation, media players ... Read more