Dept. of Technology: Remember This? : The New Yorker.
Among other things, he decided that innovations in photography would produce smaller cameras. “The camera hound of the future wears on his forehead a lump a little larger than a walnut,” he wrote. He or she could take photographs all day. The problem would be what to do with them. “Consider a future device for individual use, which is a sort of mechanized private file and library,” Bush continued. “It needs a name, and, to coin one at random, ‘memex’ will do.” Memex stood for “memory extender.”