Types of Software:

1) Public Domain ? free to anyone and legal to copy
2) Shareware ? free for a trial time, then if you keep it, you pay for it
3) Copyrighted ? software you buy, not legal to copy

Software Licenses:

1) Single User License ? legal for one computer station to use it
2) Networked License ? software comes over a file server
 
 
 

Fair Use Policy ? You may use a portion of a copyrighted work in its original form ?not changed? without the permission of the author, if it is for the following purposes: News Reporting, Research and Education.