Updating mac os x
In 2009, Apple released Mac OS X 10.6 Snow Leopard, which ran exclusively on Intel-based Macs.
In 2011, Apple released Mac OS X 10.7 Lion, which no longer supported 32-bit Intel processors and also did not include Rosetta.
Beginning with Mac OS X 10.7 Lion, the server functions were made available as a separate package on the Mac App Store.
They're software update notifications -- those unwelcome, near-daily interruptions reminding you that some piece of random software -- or the OS itself -- has an available update to install.
Because some software updates are prerequisites for others, you may need to repeat these steps several times to complete the software update sequence.
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.
The "X" in Mac OS X and OS X is the Roman numeral for the number 10 and is pronounced as such.
The X was a prominent part of the operating system's brand identity, and was used to showcase its Unix compatibility; UNIX 03 certification was achieved for the Intel version of Mac OS X 10.5 Leopard Apple also used to have a separate line of releases of Mac OS X designed for servers.
Its graphical user interface was built on top of an object-oriented GUI toolkit using the programming language.