what is copyright?
the collection of rights granted to the author of a piece of work
when material isn't protected by copyright for the following reasons:
- the copyright has expired
- the work was created using public money
- the creator donated the work into the public domain
copyrighted work that you can copy, use, or give it away for free.
copyrighted work that you can copy, share, and use for free, but only for limited time.
All Rights Reserved
allows purchasers to use software according to details in the license agreement
software that includes source code with the idea that someone can improve it.