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Closeup of a touchpad on an Acer CB5-311 laptop Closeup of a touchpad on a MacBook 2015 laptop. A touchpad or trackpad is a type of pointing device.Its largest component is a tactile sensor: an electronic device with a flat surface, that detects the motion and position of a user's fingers, and translates them to 2D motion, to control a pointer in a graphical user interface on a computer screen.
In Windows 7, when Windows Touch was introduced in the mainstream to make Windows more touch-friendly, a touch pointer is displayed instead of the mouse pointer. The touch pointer can be switched off in Control Panel and resembles a small diamond shape. When the screen is touched a blue ripple appears around the touch pointer to provide visual ...
A touchscreen (or touch screen) is a type of display that can detect touch input from a user. It consists of both an input device (a touch panel) and an output device (a visual display). The touch panel is typically layered on the top of the electronic visual display of a device.
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The pointer is an onscreen symbol that represents movement of a physical device that the user controls to select icons, data elements, etc. This style of system improves human–computer interaction ( HCI ) by emulating real-world interactions and providing greater ease of use for non-technical people.
For simple software, when the mouse starts to move, the software will count the number of "counts" or "mickeys" received from the mouse and will move the cursor across the screen by that number of pixels (or multiplied by a rate factor, typically less than 1). The cursor will move slowly on the screen, with good precision.