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Unit 3c Special Needs In this part of the coursework I am going to layout all the needs of a person who has mobility impairment. His name is Scott and he is a 19-year-old engineering student with muscular dystrophy. Scott needs special technologies in order to keep his life running as normal as possible. Some technologies that Scott may need are: * Tracker Ball * Head Tracker * Screen Keyboard * Brain Switch * Voice Recognition Tracker Ball: A tracker ball is an input device where a finger is used to rotate a ball. This moves a pointer to the screen. A tracker ball is very useful to Scott. This helps him to move the pointer around easily. The tracker ball is a replacement for a normal mouse. Scott has troubles gripping the mouse because of his deficiency. It is easier for him to use a tracker ball because this allows him to gently move the ball just with...

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