A simple radio controlled, toy car from "a well known store".
A small camera mounted on the car is connected to a low-powered TV transmitter.
The signal is picked up by a video recorder (with u/s heads) and fed into the video port on a Silicon Graphics Indy workstation.
Tim's computer program analyses the image, searches for the edges of the track (black cloth strips) and drives the car via the standard hand-set which was modified (by David Duke) so that it can be plugged into the Indy's serial port.
Left: Petrol-head Tim B' watches the performance of his program.