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.[1]?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.