GD-80

In 1971, the legendary GD-71 graphics display used a separate computer and did not have its own memory. For the GD-80, produced almost a decade later, SZTAKI had already developed its own processor and graphics unit, which allowed the system to operate completely independently. This is the pinnacle of SZTAKI's hardware and microcode development. Like its predecessor, the GD-80 was equipped with a light pencil to draw on the screen: it detected the electron beam and used it to determine its position. The GD-80 was also equipped with a tilting sphere: the periphery, called a positioning sphere in its time, contains a billiard ball. The device also had a loudspeaker - it could beep and give feedback according to the program. The GD-80's flagship application was the air traffic control simulator, used at Hungarocontrol at Ferihegy for training Hungarian and foreign air traffic controllers.