Operating Systems
作者：maria murrieta
1. What % use Windows
1.1. Pros:
1.2. Cons:
1.3. Focus on Windows 7
2. Apple, OSX, Leopard
2.1. Pros:
2.2. Cons:
3. Linux: Open Source, Free
3.1. Pros:
3.2. Cons:
4. Operating System Definition:
4.1. What does it do?
5. Cell Phone Operating Systems
5.1. Which one do you have?
5.2. Which are the major Smartphone operating systems
