Mac OS X Tiger
Operating system
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Mac OS X Tiger is the 5th major release of macOS, Apple's desktop and server operating system for Mac computers. Tiger was released to the public on April 29, 2005 for US$129.95 as the successor to Mac OS X 10.3 Panther. Wikipedia
Initial release date: April 29, 2005
Developer: Apple Inc.
Source model: Closed, with open source components
Update method: Apple Software Update