Larry Tesler demonstrates the Gypsy text editor on the Xerox Alto
Computer History Museum · Demo · 53 min · 2019 · YouTube title: Alto System Project: Larry Tesler demonstration of Gypsy
Why it's here
Referenced in discussions of early GUIs and Alto history as a rare first-hand demonstration by the creator.
What it covers
Archival footage of Larry Tesler demonstrating Gypsy, the modeless text editor he and Tim Mott built at Xerox PARC, running on the Computer History Museum's restored Alto. It is a long hands-on walkthrough of one of the earliest graphical document editors.