sentences:  Major avionics firms also attended in force.Goodyear brought their STARAN computer, originally developed for missile interception and similar duties, but now being pitched as an air traffic control (ATC) system that would optionally use a computer-generated voice to automatically send traffic advisories to pilots.Plessey was showing their ACR 430 radar for smaller airfields, and with Lockheed they were demonstrating their then-incomplete automated ATC system based on a Lockheed MAC-16 minicomputer.