As Cheetah is now considered "legacy" software, it is no longer available for purchase or direct download from the official Apple Support site. Enthusiasts and collectors typically find Cheetah installers through community-driven archives:
Mac OS X 10.0, codenamed , was the first major consumer release of Apple's modern operating system. Launched on March 24, 2001 , it introduced the revolutionary Aqua interface and the Dock , setting the stage for the next two decades of Mac computing. Where to Download Mac OS X Cheetah mac os cheetah download