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Electromagnetic devices are another technique for tracking tongue and lip movements. [4] The detection of speech movements by electromyography of speech articulator muscles and the larynx is another technique. [5] [6] Another source of information is the vocal tract resonance signals that get transmitted through bone conduction called non ...
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.
I/O devices are the pieces of hardware used by a human (or other system) to communicate with a computer. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices .
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Context sensitivity is ubiquitous in current graphical user interfaces, often in context menus. A user-interface may also provide context sensitive feedback, such as changing the appearance of the mouse pointer or cursor, changing the menu color, or with auditory or tactile feedback.
A trackball is a pointing device consisting of a ball housed in a socket containing sensors to detect rotation of the ball about two axis, similar to an upside-down mouse: as the user rolls the ball with a thumb, fingers, or palm the pointer on the screen will also move. Tracker balls are commonly used on CAD workstations for ease of use, where ...
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The device may be directly supported, or it may require the use of a specialized program which maps controller inputs to mouse and keyboard inputs. Examples of this kind of software include JoyToKey, [30] Xpadder, [31] and antimicro, which is free, open-source, and cross-platform. [32] [33]