What is Free and Open Source Software?

• Software that falls under one of two definitions:

• • Free Software Definition of the Free Software Foundation

• Open Source Definition of the Open Source Institute

• The licenses differ slightly, but they agree fundamentally on three freedoms:

• * The freedom to copy

• * The freedom to make derivative works

• * The freedom to redistribute

• Agree on the nature of the first two freedoms, differ on the freedom to redistribute.