Advanced Computer Technology

Creative Commons and Public Domain

Creative Commons

For people who want to share their expressive work with others, a creative commons license is often used. Rather than reserving all rights to their work, people can just reserve the right to be credited by others who want to use their work.

There are 4 creative commons license conditions. Those conditions are:

Attribution
by

You let others copy, distribute, display, and perform your copyrighted work — and derivative works based upon it — but only if they give credit the way you request.

Share Alike
sa

You allow others to distribute derivative works only under a license identical to the license that governs your work.

Non-Commercial
nc

You let others copy, distribute, display, and perform your work — and derivative works based upon it — but for non-commercial purposes only.

No Derivative Works
nd

You let others copy, distribute, display, and perform only verbatim copies of your work, not derivative works based upon it.

Public Domain

Expressive works without any legal protection such as copyright are considered to be in the public domain. Public domain works can be used by anyone without restriction. For instance, all writing by Shakespeare is in the public domain - no one has to pay any royalties to the Shakespeare's because his work is in the public domain!