"A touchscreen, or touch screen, is both an input and output device and normally layered on the top of an electronic visual display of an information ...
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processing system. The display is often an LCD or OLED display while the system is usually a laptop, tablet, or smartphone. 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 or one or more fingers. Some touchscreens use ordinary or specially coated gloves to work while others may only work using a special stylus or pen. The user can use the touchscreen to react to what is displayed and, if the software allows, to control how it is displayed; for example, zooming to increase the text size." - (en.wikipedia.org 06.01.2021)
