An adapted keyboard allows an individual who is unable to use a standard keyboard to utilize an adapted keyboard for computer use. A wide variety of adapted keyboards make a computer accessible to almost every student. There are different categories of keyboards: expanded keyboards; mini-keyboards; one-handed keyboards; and on-screen keyboards. Students who may not have reliable muscle control, tremors, or spastic movements can benefit from adaptive keyboards.
Sources:
http://webaim.org/articles/motor/assistive
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