Sketchpad，一个具备革命性的电脑程序，由伊凡·苏泽兰在1963年写作，作为他在麻省理工大学的博士论文的一部份。因为这个成就，伊凡·苏泽兰在1988年获得图灵奖，2012年获得京都奖。它使用了早期的电子管显示器，以及当时才刚刚发明的光电笔。它是最早的人机界面（HCI），被认为是现代计算机辅助设计（CAD）的始祖，也是计算机图形学的一大突破。它的图形用户接口，如果拖动一个结点，所有与之相借的路径都会同时改变位置，与现代面向对象应用进程采用相同概念，它也是第一个交互式电脑进程，是之后众多交互式系统的蓝本。

Sketchpad (aka Robot Draftsman) was a revolutionary computer program written by Ivan Sutherland in 1963 in the course of his PhD thesis, for which he received the Turing Award in 1988, and the Kyoto Prize in 2012. It pioneered the way for human–computer interaction (HCI). Sketchpad is considered to be the ancestor of modern computer-aided design (CAD) programs as well as a major breakthrough in the development of computer graphics in general. For example, the graphical user interface (GUI) was derived from the Sketchpad as well as modern object oriented programming. Ivan Sutherland demonstrated with it that computer graphics could be used for both artistic and technical purposes in addition to showing a novel method of human-computer interaction.