Mac OS X Snow Leopard
Operating system
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Mac OS X Snow Leopard is the seventh major release of macOS, Apple's desktop and server operating system for Macintosh computers.
Snow Leopard was publicly unveiled on June 8, 2009 at Apple’s Worldwide Developers Conference. Wikipedia
Initial release date: August 28, 2009
Developer: Apple Inc.
License: Commercial software license and Apple Public Source License (APSL)
OS family: Macintosh; Unix;
Source model: Closed, with open source components
Tagline: The world's most advanced operating system. Finely tuned
Update method: Apple Software Update