Mac OS X 10.3 Panther Server Unlimited Client [OLDER VERSION] Super-modern operating system combining the strength of UNIX with the elegance of Macintosh Aqua user interface is intuitive for new users; has powerful features for professionals Innovative organizational features such as the Expos? and Finder Protected memory and advanced memory management increase system stability Designed with built-in best-of-class applications includeing Mail, Safari, and Internet Connect