1.Pulic Domain: A Copy right law
2.Freeware: A copyright work that you can use for free.
3.Shareware: A copyright work you pay to use.
4.All Rights Reserved:All rights reserved only allows the purchaser to use the software according to the details spelled out in the license agreement
Example/Soft ware you buy at best buy
5.Open Source: A software that uses a code but allows people to use it.