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As of mac OS 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 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"). 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.
The latest version of mac OS is mac OS High Sierra, which was publicly released in September 2017.With increasing popularity of the internet, Apple offered additional online services, including the . It later began selling third-party applications through the Mac App Store.Newer versions of Mac OS X also included modifications to the general interface, moving away from the striped gloss and transparency of the initial versions.In 2011, Apple released Mac OS X 10.7 Lion, which no longer supported 32-bit Intel processors and also did not include Rosetta.All versions of the system released since then run exclusively on 64-bit Intel CPUs and do not support Power PC applications.The heritage of what would become mac OS had originated at Ne XT, a company founded by Steve Jobs following his departure from Apple in 1985.
There, the Unix-like Ne XTSTEP operating system was developed, and then launched in 1989.
Reviews were variable, with extensive praise for its sophisticated, glossy Aqua interface but criticizing it for sluggish performance.
Ars Technica columnist John Siracusa, who reviewed every major OS X release up to 10.10, described the early releases in retrospect as 'dog-slow, feature poor' and Aqua as 'unbearably slow and a huge resource hog'.
Version 10.4, Tiger, reportedly shocked executives at Microsoft by offering a number of features, such as fast file searching and improved graphics processing, that Microsoft had spent several years struggling to add to Windows with acceptable performance.
Targeting the consumer and media markets, Apple emphasized its new "digital lifestyle" applications such as the i Life suite, integrated home entertainment through the Front Row media center and the Safari web browser.
Throughout the early 1990s, Apple had tried to create a "next-generation" OS to succeed its classic Mac OS through the Taligent, Copland and Gershwin projects, but all of them were eventually abandoned.