NLS, or the "oN-Line System" was designed by which American engineer?
NLS (computer system): NLS, or the "oN-Line System", was a revolutionary computer collaboration system from the 1960s. Douglas Engelbart: Douglas Carl Engelbart (January 30, 1925 – July 2, 2013) was an American engineer and inventor, and an early computer and Internet pioneer.
Douglas Carl Engelbart