What are the advantages and disadvantages of operating systems?

An advantage of windows is that you get more freedom than mac os x. The problem with this freedom is that it's easy to get hacked and get viruses. I don't know linux very well, but do know that hackers use it because it's easy to cover your tracks after you've hacked somebody. I recommend getting a PC, with Windows. If you want to try the other operating systems get a virtual machine.