- In 70s software was not a product. Usually complete OS was distributed with hardware
- Advent of microcomputers opened a "market" for software
- How to treat software: Is it a Formula or Prose?
- Richard Stallman realized the implications of copyright
- Using the machinery for his purpose, he inverted the copyright -> GPL also called Copyleft
|4.1.4. History of Unix: Free Software||1. Denx Training Topics||4.1.6. History of Linux|