What Is Touch Screen And Where Can It Be Applied To?

     A touch screen is a display device that allows the user to interact with a computer by using their finger or stylus. They can be quite useful as an alternative to a mouse or keyboard for navigating a GUI (graphical user interface). Touch screens are used on a variety of devices such as computer and laptop displays, smartphones, tablets, cash registers, and information kiosks. Some touch screens use a grid of infrared beams to sense the presence of a finger instead of utilizing touch-sensitive input.