There are thousands of differences between mac and windows operating systems. To try and explain everything would take me all day and a books worth of typing. I can however explain the primary differences. First Windows is based upon a DOS programming language (think of it as the foundation for the operating system); Mac is based upon unix programming language, (linux is also based upon unix as well.) Macintosh is often more secure than windows due to less attempts at hacking because the majority of computer users use Windows. Macs tend to focus on graphics and multimedia while Windows focuses on office function. I would say it would be easier for you visit the individual websites and decide for yourself.