Assistive Technology is any piece of equipment or software that is used to increase, maintain, or improve functional capabilities of individuals with disabilities. There is a wide range of Assistive Technology which can be used in higher education to increase accessibility.
We also often use the terminology alternative and adaptive technology.
Alternative technology is not explicitly designed for disabled users in mind, but through its design it better accommodates individual needs. An example would be a compact keyboard, or mind mapping software.
Adaptive technology is equipment or software specifically intended to meet the needs of an individual with a disability. An example would be a keyguard for a keyboard or a joystick mouse.
The line between alternative and adaptive technologies is blurred when adaptive equipment is found to meet all people's needs more effectively in an inclusive way. Many products which were initially designed to aid the lives of disabled people, such as voice recognition, have gone on to be used generally.