1.1. Pros: Install is quick, easy and painless.After working through a few wizard screens at the beginning, the install is automatic
1.2. Cons: None really
1.3. Focus on Windows 7
2. Linux: Open Source, Free
2.1. Pros: Browsing internet, graphics, spread sheet, multimedia and everything works perfectly in it.
2.2. Cons: you have to learn about computers and the os to install and maintain it correctly.
3. Apple, OSX, Leopard
3.1. Pros: Because Mac OS X is based on Open Source foundations, the global open source community is quick to add to the resources, so bugs are fixed quickly, vulnerabilities are addressed quickly, and the user base that has access to the code to make corrections is larger than Apple alone.
3.2. Cons: There is more commercially-written software available for Windows than Mac OS, but this gap is shrinking.
4. Definition:
4.1. supervises the overall operation of a computer, including such tasks as monitoring the computer's status, handling executable program interruptions, and scheduling of operations.
