macosx10.0 MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X 치타 MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah MacOS X Cheetah 10.0 Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. Apple Inc. darwin osx Cheetah 2001-03-24 2003-12-31