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The Mother of All Demos
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The Mother of All Demos is a colloquial name given to a presentation from 1968 for the NLX Machine by Douglass Engelbert in 1968. It was fundamentally a realization of the Memex machine by Dr. Vannever Bush in his famous essay As We May Think. It introduces numerous concepts now standard to computing, including Hypertext, using a mouse, telecommunications, wireless networking, versioning, and several other things.
It is widely considered one of the most significant events in the history of the development of the computer.
