Open Source
- 1970s–1980s
- Microsoft, IBM started selling closed-source software
- 1985
- Free Software Movement by Richard Stallman
- GPL License created in 1989
- 1991
- Linux kernel by Linus Torvalds under GPL
- 1998
- Open Source Initiative (OSI) founded
- promoted the term “Open Source” as business-friendly
- 2000s
- Apache, MySQL, PHP, Perl → “AMP” stack powered millions of websites.
- 2005: Git
- 2008: GitHub
Free Software Movement
- Richard Stallman started it in 1983
- He founded Free Software Foundation (FSF)
- He created GNU project
- Released the GPL License - ensures derivatives remain free/open