What familiar device was invented by human-computer interface engineer Douglas Engelbart, creator of hypertext?
Purple Numbers Purple Numbers is a suite of tools that allows one to address paragraphs of HTML content. It was originally conceived by Douglas Engelbart for his creation of hypertext. The name comes from the faint, purple numbers at the end of each paragraph, which represent the link to that paragraph. The name was coined by Christina Engelbart, Doug's daughter.
Chip Morningstar Chip Morningstar is an author, developer, programmer and designer of software systems, mainly for online entertainment and communication. He graduated from University of Michigan in 1981 with a Bachelor of Science in Computer Engineering. While at the University of Michigan he also performed research in the Space Physics Research Laboratory, where he wrote device drivers and CAD software for electronic circuitry. Morningstar held many jobs throughout his career in the research and development of technology and programs. Most notably was Morningstar's role as project leader for Lucasfilm's "Habitat", the first large-scale virtual multiuser environment. In March 2001, Morningstar and colleague Randy Farmer were awarded the inaugural "First Penguin Award" by the International Game Developers Association for their work on Habitat. He also participated in Project Xanadu, for which the word hypertext was first coined. Additionally, he is credited with coining the term avatar for an on-screen representation and pre-Internet work in online information marketplaces.