NLS, or the "
oN-Line System", was a revolutionary
computer collaboration system from the 1960s. Designed by
Douglas Engelbart and implemented by researchers at the
Augmentation Research Center (ARC) at the
Stanford Research Institute (SRI), the NLS system was the first to employ the practical use of
hypertext links, the
mouse,
raster-scan video monitors, information organized by relevance,
screen windowing,
presentation programs, and other modern computing concepts. It was funded by the
Defense Advanced Research Projects Agency,
NASA, and the
U.S. Air Force.