To protect the software's developers rights of distribution. So that no parts of code are copied without the author's permission.
the software that belong to a party who have the legal rights, are called copyrighted software. only those who have a license from the copyrighted party can use change or distribute this software. this software has a legal binding some of the companies of this type are microsoft, macromedia, adobe etc.
Open source software is software that allows the source code to be used. Oftentimes, they are free to use. Open source software is copyrighted.
If you are looking for more information on how do you backup copyrighted software, the best place to look is on copy-protected-dvd.software.informer.com
Packaged Software
Packaged Software
Shareware or freeware.
If something is in the public domain, then it is not copyrighted. Creative commons also has a license for any software developer who wants to let others reuse their code.
is a mass produced, copyrighted retail software that meets the needs of a wide variety of users, not just a single user or company.
ShareWare and Open Source software are two types of software that are freely distributed.
The code that is written, like a book, is copyrightable. Algorithms, and the general process that the program follow to achieve it's goal, are patentable.
That which is neither freeware nor GPL-licensed.
Shareware