Mac OS X is the world's most advanced operating system. Built on a rock-solid UNIX foundation and designed to be simple and intuitive, it's what makes the Mac innovative, highly secure, compatible, and easy to use. Quite simply there is nothing else like it. Mac OS X is both easy to use and incredibly powerful.
Everything, from the desktop you see when you start up your Mac to the applications you use every day, is designed with simplicity and elegance in mind. So whether you're browsing the web, checking your email, or video chatting with a friend on another continent, getting things done is at once easy to learn, simple to perform, and fun to do. Of course, making amazing things simple takes seriously advanced technology.