J. D. Frazer also made a reference to Jefferies tubes in his User Friendly comic strip.
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While not the first graphical word processor for Linux (EZ Word, part of the Andrew User Interface System, has that honor), nor the first proprietary word processor for Linux (WordPerfect was first made available for Linux by Caldera in late 1995), Applixware Words was a good deal more user-friendly than EZ Word and a good deal more bug-free than early Linux releases of WordPerfect.
It was during this time that computer hardware was built to become much more “user – friendly” and we then witnessed the invention of the digital camera and the home PC’s (Personal Computer) and the establishment of the World Wide Web.
John Dobson, How and Why to Make a User-Friendly Sidewalk Telescope edited by Norman Sperling ISBN 0-913399-64-7 The book treats the "why" as importantly as the "how", sharing Dobson's philosophy on the importance of popular access to astronomy for proper appreciation of the universe.
Debian packages (in combination with APT) package software such that it can easily be installed in a user-friendly point-and-click manner on Debian (and subsequently, several other Linux distributions), removing hurdles for less-technical users.
Ultimate 3D was originally designed to be an easy-to-use 3D engine for the user friendly game creation software Game Maker, which only supported 2D rendering at the time of the first Ultimate 3D versions, and the early versions' features were quite limited in the beginning.