A mouse controlled by head movement allows a paralyzed user to undertake creative and profitable careers in desktop publishing, digital graphics and computer aided design. Spoken language through augmentative communication devices. Portable and computer-based devices can replicate and produce spoken language. They can be selected and programmed to meet the needs and ability of the user. Conservation of energy and organization and sequencing of tasks.
Sensory deficits refer to the problems caused by blindness, low vision and deafness.
The use of page scanner to convert a page of printed information into a computer document. The computer follows the users commands to read the page and can even save the page or print it in Braille or large letters. Cognitive deficits refer to the problems caused by learning disabilities, head injuries, stroke, and developmental delays and disabilities. Using keyboarding as a substitute for cursive writing to bypass fine motor and perceptual problems. By compensating for severe penmanship deficits, a young learner gets on with the task of learning to produce written language.