Abstract :
A system which uses a form of automatic radar data extraction followed by computer processing requires an output device in the form of a display, which accepts digital information and compiles it into a form which can readily be used by a controller. The display system described in this paper consists of a central equipment and a number of display consoles. The central equipment contains a master timing unit, a buffer store, a symbol generator and a digital/analogue converter, and it generates all the timing waveforms, deflection waveforms and brightening waveforms which are required by the consoles. The consoles themselves are all similar and contain the cathode-ray tube driving circuits together with display selection facilities and a means of injecting information manually into the computer. The method of operation of the equipment is discussed, and the three basic types of display, and the facilities they offer, are described in detail.
