The document provides a summary of the early history of human-computer interaction from 1945 to 1968, covering several important developments:
- The ENIAC computer from 1945 initiated basic input/output modalities using tactile switches, punch cards, and printouts. Grace Hopper helped bridge human and machine languages.
- Vannevar Bush's hypothetical MEMEX machine from 1945 used microfilm for storage and proposed hypertext-like associations between documents.
- Ivan Sutherland's Sketchpad system from 1963 was an early prototype of graphical user interfaces using a light pen for input on a screen.
- Ted Nelson coined the term "hypertext" in 1965 to describe nonlinear, linked documents.