TouchFree Switch, by the IBM subsidiary Edmark, enables the disabled to use computers and surf the web. This “no-touch” device pairs a digital camera with switch software to let users who are unable to use a traditional mouse trigger a mouse click.

TouchFree Switch can recognize almost any movement as a mouse click—from a head nod to a toe tap, according to Edmark. After setting a designated movement for the camera to detect, the user watches a cursor on the monitor float from icon to icon. When the cursor gets to the right icon, the student makes the designated movement and


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