Copyrights and Licenses
Freeware: Copyrighted work you can copy, use, or give away for free. Examples are Internet Explorer, Safari. The benefit is exposure.
Shareware: Copyrighted work you can copy, share, and use for free but only for a limited time. An example is “Lite apps”. The benefit is people wanting to buy the full version after.
All rights reserved: Only allows purchaser to use the software according to details in the agreement. Example: Buy something at Best Buy
Open source: Allow software to be used freely, modified, and shared. Example: Google Chrome.