This area is for information and experience surrounding AAC: Look at the index for the topics in this list.
Augmentative and Alternative Communication (AAC) is the term used to describe methods of communication which can be used to add to the more usual methods of speech and writing when these are impaired. MC includes unaided systems such as signing and gesture, as well as aided techniques ranging from picture charts to the most sophisticated computer technology currently available. AAC can be a way to help someone understand, as well as a means of expression. Read more about AAC...
There is a debate over whether ‘dedicated’ devices are more reliable than PC based devices (or, more accurately - devices where the operating system is exposed). There is some evidence regarding the reliability of dedicated devices.