Technology: How Do I Clean Up My Computer? (8/7/2012)

(3of5) The Machine That Changed the World: The Paperback Computer. (1992) (Documentary) Documentary overview: The Machine That Changed the World is the longest, most comprehensive documentary about the history of computing ever produced, but since its release in 1992, it’s become virtually extinct. Out of print and never released online, the only remaining copies are VHS tapes floating around school libraries or in the homes of fans who dubbed the original shows when they aired. Video Description: The development of the personal computer and user interfaces, from Doug Engelbart and Xerox PARC to the Apple and IBM PCs. Notes: Like the books of the Middle Ages, early computers were large, extremely expensive, and maintained by a select few. It seemed unlikely they’d be commonplace, partly because they were so difficult to use. Developing software was extremely tedious, the interface limited to writing instructions on punched cards. Ivan Sutherland’s revolutionary Sketchpad was the first graphical user interface, pioneering the fields of interactive computing, computer-aided drawing, and object-oriented programming. Douglas Engelbart’s NLS, demonstrated in the Mother of All Demos from 1968, demonstrated for the first time several concepts that would become commonplace: the mouse, CRT display, windowing systems, hypertext, videoconferencing, collaborative editing, screen sharing, word processing, and a search engine ordering by relevance. Xerox, realizing computers might lead …

How can i get rid of all the little things the computer has remembered like the internet history and user names and just do a general clean up of all the information over the years that is no longer needed.