Alan Kay presenting Ivan Sutherland’s Sketchpad, one of most influential programs in the history of graphical user interfaces. Sutherland developed Sketchpad in 1963. This video was extracted taken from a longer one in http://www.archive.org/details/AlanKe…


This video is a TV show made about the software Ivan Sutherland developed in his 1963 thesis at MIT’s Lincoln Labs, “Sketchpad, A Man-Machine Graphical Communication System”, described as one of the most influential computer programs ever written. This work was seminal in Human-Computer Interaction, Graphics and Graphical User Interfaces (GUIs), Computer Aided Design (CAD), and contraint/object-oriented programming. While watching this video, remember that the TX-2 computer (built circa 1958) on which the software ran was built from discrete transistors (not integrated circuits -it was room-sized) and contained just 64K of 36-bit words (~272k bytes).