A touch screen technology is the assembly of a touch panel as well as a display device. Generally, a touch panel is covered on an electronic visual display within a processing system. Here the display is an LCD otherwise OLED whereas the system is normally like a smartphone, tablet, or laptop. A consumer can give input through simple touch gestures by moving the screen using a special stylus otherwise fingers. In some kinds of touch screens, some normal otherwise gloves are used which are coated to work properly whereas others may simply work with the help of a special pen.
The operator uses the touch screen to respond to what is displayed and if the software of the device permits to control how it can be exhibited like zooming the screen to enhance the size of the text. So touch screen allows the operator to communicate directly through the displayed information instead of using a touchpad, mouse, etc. Touch screens are used in different devices like personal computers, game consoles, EVMs, etc Touch screens are also essential in educational institutions like classrooms in the colleges.