Upgrade from Mac OS X Leopard with Snow Leopard, a simpler, more powerful, and more refined version of Mac OS X. It delivers a wide range of enhancements, next-generation technologies, out-of-the-box support for Microsoft Exchange Server, and new accessibility features. It's the world's most advanced operating system, finely tuned from installation to shutdown.
Snow Leopard is an upgrade for Leopard users and requires a Mac with an Intel processor.
General requirements: Mac computer with an Intel processor 1GB of memory 5GB of available disk space DVD drive for installation Some features require a compatible Internet service provider; fees may apply. Some features require Apple’s MobileMe service; fees and terms apply.