January 7, 1963, Ivan Sutherland introduces the Sketchpad and submitted his PhD thesis to MIT.
The Sketchpad, one of the earliest programs for the TX-0, allowed direct manipulation of objects on a computer screen.
Using the Sketchpad, a user could create and manipulate graphical figures with a light pen.
This thesis provided the basis for later graphical user interfaces and is considered one of the seminal papers in computer science.
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