•Direct Manipulation (Shneiderman, 1983)
–Visible objects and actions
–Rapid, reversible, incremental actions
–Dynamic queries
•Xerox alto, Apple Lisa, Macintosh & GUIS & WIMP interfaces (1979+)
•Hypertext (Bush, 1945; Nelson, 1974)
–Links are first class objects
•Games and visualizations (lunar lander 1960s, Atari
Pong, 1972); VR
(Engelbart--radar; Sutherland—simulations)
–
•