Touchscreen

Touchscreen: 

A touch screen is a video display screen that has been sensitized to receive input from the touch of a finger. The screen is covered with a plastic layer, behind which are invisible beams of infrared light.

Figure: Touchscreen

Uses of Touchscreen: 

1. Touchscreens are used for self-service tall, where the user just touches the screen to select the fuel grade and payment method.
2. Touchscreens are used where selections are made on screen, for example ATMs.