Developer | Apple |
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Written in | |
OS family | Macintosh, Unix |
Working state | Current |
Source model | Closed source (with open source components) |
Initial release | March 24, 2001 |
Latest release | 10.12.3 (16D32) (January 23, 2017 ) |
Marketing target | Personal computing |
Available in | 34 languages |
List of languages
As of macOS Sierra: Arabic, Catalan, Croatian, Chinese (Simplified), Chinese (Traditional), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian, Polish, Portuguese (Brazil), Portuguese (Portugal), Romanian, Russian, Slovak, Spanish (Mexico), Spanish (Spain), Swedish, Thai, Turkish, Ukrainian, Vietnamese
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Update method |
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Platforms | |
Kernel type | Hybrid (XNU) |
Default user interface | Graphical (Aqua) |
License | Commercial software, proprietary software |
Preceded by | Classic Mac OS |
Official website | www |
macOS (pronounced /ˌmækoʊɛs/; previously Mac OS X, then OS X) is the current series of Unix-based graphical operating systems developed and marketed by Apple Inc. designed to run on Apple's Macintosh computers ("Macs"), having been preinstalled on all Macs since 2002. Within the market of desktop, laptop and home computers, and by web usage, it is the second most widely used desktop OS after Microsoft Windows.
Launched in 2001 as Mac OS X, the series is the latest in the family of Macintosh operating systems. Mac OS X succeeded "classic" Mac OS, which was introduced in 1984, and the final release of which was Mac OS 9 in 1999. An initial, early version of the system, Mac OS X Server 1.0, was released in 1999. The first desktop version, Mac OS X 10.0, followed in March 2001. In 2012, Apple rebranded Mac OS X to OS X. Releases were code named after big cats from the original release up until OS X 10.8 Mountain Lion. Beginning in 2013 with OS X 10.9 Mavericks, releases have been named after landmarks in California. In 2016, Apple rebranded OS X to macOS, adopting the nomenclature that it uses for their other operating systems, iOS, watchOS, and tvOS. The latest version of macOS is macOS 10.12 Sierra, which was publicly released in September 2016.