Assistive technology (AT) is anything that supports or lets you do that which you can’t do/or can no longer do yourself.
AT can be simple, like a pair of reading glasses, to the more complex, such as a communication program that supports speech, and everything in between.
There is AT for every activity and aspect of life. If you want to do it, play it, make it, participate in it, or use it, there is AT available to support you to achieve your goals (and if there isn’t an AT solution, chances are it’s being developed).