Which assistive device allows control of a computer using eye movement or head tracking?

Which assistive device allows control of a computer using eye movement or head tracking?

• A. Braille embossers
• B. Large print
• C. Eye gaze & head tracking systems
• D. FM systems

Answer: (C)

Controlling a computer with eye movement or head tracking is a form of assistive technology that lets someone interact with a computer without using hands. Eye gaze and head tracking systems use sensors to detect where you’re looking or how your head is moving, then translate that into cursor movement and selections on screen. You can move the pointer, click or select by dwelling or with an optional switch, and type via on-screen keyboards, all without touching a mouse or keyboard. This enables hands-free computer access for people with limited mobility. Braille embossers print tactile braille, not control a computer. Large print helps with reading by enlarging text, not interfacing with the computer. FM systems aid hearing by projecting sound, not computer control. So the option that specifically enables hands-free computer control through eye movement or head tracking is the correct one.

Controlling a computer with eye movement or head tracking is a form of assistive technology that lets someone interact with a computer without using hands. Eye gaze and head tracking systems use sensors to detect where you’re looking or how your head is moving, then translate that into cursor movement and selections on screen. You can move the pointer, click or select by dwelling or with an optional switch, and type via on-screen keyboards, all without touching a mouse or keyboard. This enables hands-free computer access for people with limited mobility.

Braille embossers print tactile braille, not control a computer.

Large print helps with reading by enlarging text, not interfacing with the computer.

FM systems aid hearing by projecting sound, not computer control.

So the option that specifically enables hands-free computer control through eye movement or head tracking is the correct one.