Alternative Input Devices

Alternative input devices are hardware or software solutions that allow users with a variety of impairments to access a computer in a different way. Alternative input devices allow the user to access a computer in whatever way works best for them such as using his/her feet, head, eye, mouth, breath, thumb, or a single finger. Some devices are activated by motion while others can be controlled with nerve or muscle signals, optical tracking, even brain activity and mind energy.