Stanford has put online the video of Doug Engelbart’s 1968 live presentation of the work he and his collegues at the Augmentation Research Center had been working on since 1962. Besides showing off the computer mouse (seen here on the right) for the first time, an amazing array of technologies are demo’d, including hyperlinking and shared-screen network collaboration with audio and video. A tech demo’d that didn’t catch on (widely, anyway) is the Chord Key Set (seen on the left), a input device that used combinations of five keys to send commands to the computer.