Operating System

1. Definition: Software that controls the wxecution of computer programs and may provide various service, operating Systems (commonly abbreviated to OS, O/S or kernel) is and interface between hardware and software in a computer system. The OS is responsible for the management and coordination of activities and the sharing of the limited resources of the computer

2. What % use windows

2.1. 90% use it

2.2. 10% don't use it

3. Cell phone Operating System

3.1. I have T-Mobile G1

3.1.1. Android by Google

3.2. T-Mobile Wing

3.2.1. Windows Mobile

3.3. Verizon Droide

3.3.1. Android by Google

4. Apple,OSX,Leopard

4.1. Pros: Not a primary target for hackers on the web.

4.2. Cons: it is not designed for windows.

5. Linux: Open Source,Free

5.1. Ubuntu

5.1.1. Pros: It is an alternative to Office and Windows

5.1.2. Pros: Free Software Updates

5.1.3. Cons: Without a CD you may have to play with the iso files and make and burn discs.