WesTest Engineering Corporation manufactures factory automation test equipment including functional test equipment, field service test equipment, performance testers and power supply testers for use in commercial and military repair depots. The company's family of VXIbus based automatic test? systems are designed to support avionic and missile systems and diagnose to the component level. These state-of-the-art testers are currently being used to support the F-4, F-5 and? F-16 aircraft at commercial and military depots in the United States and? overseas locations. They also manufacture computer input devices for people with disabilities. The devices act as an interface between the person and the computer and allow the person to communicate with the computer without using the conventional keyboard