Sketchpad

Sketchpad is a program that was created in 1962 as part of the doctoral thesis of Ivan Sutherland at the Massachusetts Institute of Technology (MIT). It turned in times of late punch card machine is a first step towards graphical interface and CAD, already took an early tube screen and the just invented light pen. The application ran on a massively rebuilt Lincoln TX -2 computer, which was dismantled after the end of the work.

The program already had first object-oriented approaches: When changing the central drawing also additional, derived drawings changed.

Pending the application of the technology in the CAD field, such as in the early plotter applications by Konrad Zuse, or in the interface area ( Xerox, Macintosh, PC / GEOS, Windows, KDE, GNOME) it was still a long way to go. One of the first practical applications of light pen - tube screen combination was the air traffic control in the context of the North American NORAD SAGE program.

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