This results in a human sounding voice, but the number of words or phrases available to the user are very limited because this approach takes up a large amount of computer memory. Many of the devices described in this guide work independently of a computer system but can also be included in a system to add to the range of information and abilities the user with disabilities can access. Some devices use the standard interfaces provided on the computer. For example, joysticks and the mouse generally connect to a standard computer port which is either built in or readily available. Others require very special interface devices.
Simple switches require a special switch interface that accepts the plug of the switch.
Most switch producers also make a switch interface. Some interface devices are designed to accept more than one type of input device. Computer access technology holds many current advantages for individuals with disabilities and the promise of more to come as new hardware and software are developed and refined. North Northwood Ave.