![]() ![]() They can also be attached to computers or, as terminals, to networks. Touchscreens are common in devices such as game consoles, personal computers, electronic voting machines, and point-of-sale (POS) systems. The touchscreen enables the user to interact directly with what is displayed, rather than using a mouse, touchpad, or other such devices (other than a stylus, which is optional for most modern touchscreens). 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. Some touchscreens use ordinary or specially coated gloves to work while others may only work using a special stylus or pen. 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. The display is often an LCD or OLED display while the system is usually a laptop, tablet, or smartphone. 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 processing system.
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