Touchscreen
In short: A touchscreen is a display that detects touch.
In more detail: Capacitive panels respond to fingers (smartphones, tablets), resistive ones to pressure, for example for pens and gloves.
In Depth
Use
Smartphones, tablets, tills, machines, info terminals. Gestures such as tapping, swiping and pinching define the operation (UI). See monitor.
See also: Smartphones, Tablets, Monitor, UI