What familiar device was invented by human-computer interface engineer Douglas Engelbart, creator of hypertext?
Douglas Engelbart Douglas Carl Engelbart (January 30, 1925 – July 2, 2013) was an American engineer and inventor, and an early computer and Internet pioneer. He is best known for his work on founding the field of human–computer interaction, particularly while at his Augmentation Research Center Lab in SRI International, which resulted in creation of the computer mouse, and the development of hypertext, networked computers, and precursors to graphical user interfaces. These were demonstrated at The Mother of All Demos in 1968. Engelbart's Law, the observation that the intrinsic rate of human performance is exponential, is named after him.
Jane (software) Jane 128 was a GUI-based integrated software package for the Commodore 64 and Commodore 128 personal computers. It was developed by Arktronics and published by Commodore International in 1985. Like Commodore's earlier Magic Desk software, it used a literal desktop metaphor with the interface consisting of an onscreen graphic of a desktop with icons representing associated business tools - a typewriter represented the word processor component (called JaneWrite), a filing cabinet the database (JaneList) and so on. It was designed to be controlled by either a joystick or a mouse. Like most of the other examples of integrated software for home computers, Jane's components were criticized for being slow and limited It was not a success in the marketplace but represented an early example of a graphical interface on an 8-bit computer.