'''NLS''', or the "'''oN-Line System'''", was a revolutionary [[computer collaboration system]] developed in the 1960s. DesignedIt was designed by [[Douglas Engelbart]] and implemented by researchers at the [[Augmentation Research Center]] (ARC) at the [[SRI International|Stanford Research Institute]] (SRI), the NLS. systemIt was the first to employ the practical use of [[hypertext]] links, the [[Computer mouse|mouse]], [[raster scan|raster-scan]] [[Computer monitor|video monitors]], information organized by relevance, [[GUI|screen windowing]], [[presentation program]]s, and other modern computing concepts. It was funded by ARPA (the predecessor to [[DARPA|Defense Advanced Research Projects Agency]]), [[NASA]], and the [[United States Air Force|US Air Force]].