“Free software” is a term that’s often used interchangeably with “open source,” and often understood simply to mean software that is obtained without charge. However, the idea of free software is ...

RMS is still well known in free software and open-source circles for his work. He first built his reputation by taking James Gosling's Emacs text editor and relicensing it under GNU Public License ...

The GNU GPLv2 Sec. 2 (c) requires people who modify the interactive program released under that license to cause it to print or display legal notices, but they can change where and how it displays ...