Computer Science / Unit 9 CS 0493 short lesson, about 20 seconds
"Free Means Gratis"
Captions available
The idea
Free software's "free" refers to liberty, not price — users may be required to pay for it — while gratis software is freeware, a different thing that rarely includes source code.
In practice
A district paying for supported free software has contradicted nothing.
Where people slip
Liberty and price are independent axes; the name confuses them.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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