ABSTRACT
There have been enormous advances in the use of computer technology to support
people to communicate. Communication aids that use any form of computer
technology are defined as low mid and high-tech aids. There is not always a
consensus on the definition of these categories; however, they are all electronic
and use computer technology. Generally, the more technologically advanced an
aid is, the higher the category is. Low-tech aids include simple switches such as
BIGmack™ and Gotalk4™ which play pre-recorded or synthesised verbal messages
which are accessed by pressing a button or symbol. More high-tech options such
as VOCAs (voice output communication aids) often require more input or allow the
user to navigate more pages, offering increased choice. Higher-tech products can be
programmed to grow and develop to meet individual needs.
