Technologist Douglas C. Engelbart died on Tuesday night at the age of 88. The US Navy World War II veteran and Oregon State graduate is credited with inventing the "X-Y position indicator for a display system" which would later be known as the computer mouse, the first public video-conference, and the concept of text-based hyperlinks and interconnected computers, all in a far-reaching presentation that was later called "the mother of all demos" before 1,000 colleagues in San Francisco in 1968.
