The Free On-line Dictionary of Computing (30 December 2018):

Douglas Engelbart
Engelbart, Douglas

    Douglas C. Engelbart, the inventor of the mouse.

   On 1968-12-09, Douglas C. Engelbart and the group of 17
   researchers working with him in the Augmentation Research
   Center at Stanford Research Institute in Menlo Park,
   California, USA, presented a 90-minute live public
   demonstration of the on live system, NLS, they had been
   working on since 1962.  The presentation was a session in the
   of the Fall Joint Computer Conference held at the Convention
   Center in San Francisco, and it was attended by about 1000
   computer professionals.  This was the public debut of the
   computer mouse, hypertext, object addressing, dynamic file
   linking and shared-screen collaboration involving two persons
   at different sites communicating over a network with audio and
   video interface.

   The original 90-minute video: Hyperlinks
   (http://vodreal.stanford.edu/engel/08engel200.ram), Mouse
   (http://vodreal.stanford.edu/engel/12engel200.ram),
   Web-board
   (http://vodreal.stanford.edu/engel/23engel200.ram).

   Biography (http://www2.bootstrap.org/dce-bio.htm).

   Tia O'Brien, "The Mouse", Silicon Valley News
   (http://mercurycenter.com/svtech/news/special/engelbart/).

   (http://inventors.about.com/library/weekly/aa081898.htm).

   (2003-08-06)