Sometimes the contribution is using therapeutic techniques to strengthen a body part and other times it is modifying the person's environment. Many times an occupational therapist recommends a piece of adaptive equipment. Think of Assistive Technology as very powerful adaptive equipment. That is because the technology is extremely powerful and adaptable. The basic skills and knowledge of an occupational therapist with the addition of assistive technology knowledge are an unbeatable combination.
Computers are wonderful tools for supporting human creativity.
Adapting computers so that disability is accommodated offers great potential to address all kinds of human occupation. Assistive technology is very natural to occupational therapy. Activities and work help you to build a self concept, allow you to meet a wide range of needs and enable you to contribute to society. Think of the last time you were laid up and couldn't get to the store or the movies and had to miss your team's event. You were miserable.