Computer Science / Unit 9 CS 0492 short lesson, about 20 seconds
Free and Open-Source Software
Captions available
The idea
Free software grants users four freedoms — free referring to liberty; open-source software is distributed under a license granting the right to use, study, modify, and distribute the software and its source.
In practice
A public repository accepting contributions from anybody is the model in daily operation.
Where people slip
Without a license, code defaults to copyright protection.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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