Doug Engelbart, 88, Inventor of …
… the mouse; the chording keyboard for use with the mouse; the demo; videoconferencing; real-time online collaboration and collaborative editing; the first practical, working hypertext system, which was also a hypermedia system; word processing; dynamic file linking; version control; computer augmentation of human intelligence; and the bootstrapping of human intellectual processes.
Engelbart died on July 2. (Los Angeles Times obituary.)