How did the stylus go from sci fi dream to reality? Here are some of the notable milestones along the way. 1945: While trying to solve the problem of information overload for scientists working on national security projects, Vannevar Bush, then head of the U.S. Office for Scientific Research and Development, came up with one of the most influential concepts in the history of tech. Published under the title “ As We May Think ,” Bushs idea was for a kind of “memory extender,” or “memex,”...

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