Douglas Engelbart Dead
Demoed the mouse, hypertext, windows, and video conferencing in 1968 — the Mother of All Demos — decades early.
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Worked at SRI International
Demonstrated 'the mother of all demos' (1968) — mouse, hypertext, collaborative editing, video conferencing — 15 years before the PC.\n\nThe oN-Line System was decades early; the industry's debt to him is unpayable.