Ī prominent part of macOS's original brand identity was the use of Roman numeral X, pronounced 'ten' as in Mac OS X and also the iPhone X, as well as code naming each release after species of big cats, or places within California. Apple's mobile operating system, iOS, has been considered a variant of macOS. All releases from Mac OS X 10.5 Leopard and after are UNIX 03 certified, with an exception for OS X 10.7 Lion. The first desktop version, Mac OS X 10.0, was released in March 2001, with its first update, 10.1, arriving later that year. During this time, Apple cofounder Steve Jobs had left Apple and started another company, NeXT, developing the NeXTSTEP platform that would later be acquired by Apple to form the basis of macOS.

MacOS succeeded the classic Mac OS, a Macintosh operating system with nine releases from 1984 to 1999. Within the market of desktop and laptop computers it is the second most widely used desktop OS, after Microsoft Windows and ahead of Chrome OS.

It is the primary operating system for Apple's Mac computers. Come on, that the key step for those who are in old versions of OS X is to find and upgrade to Snow Leopard first.MacOS ( / ˌ m æ k oʊ ˈ ɛ s/ previously Mac OS X and later OS X) is a proprietary graphical operating system developed and marketed by Apple Inc. Once these steps have been carried out, there is only first install Snow Leopard on our machine and after everything is installed open the Mac App Store and download OS X Mavericks this time for free and install it on the Mac. You can upgrade to OS X Mavericks from: Snow Leopard (10.6.8), Lion (10.7) and Mountain Lion (10.8) but if you have a version prior to Snow Leopard 10.6 You must first upgrade to OS X Snow Leopard in order to install OS X Mavericks.įor this we only have to buy the version of OS X Snow Leopard which is only available for purchase from the Mac App Store and which has u n price of 18 euros in Spain and 19,99 dollars in the United States. The OS X version of your Mac is in the About this Mac window, click on More information and just below the serial number we find the version of the operating system, it can be accessed from the menú menu in the menu bar. The next step is to see the version of OS X that we have on our Mac

MacBook (late 2008 or early 2009 aluminum model or later).

This appears on the Apple website and is the following: The list is long and it is almost certainly our Mac appears in those that can be updated, but it is always better to make sure before taking any step.

2 The next step is to see the version of OS X that we have on our MacĬheck if our Mac is compatible with OS X Mavericks.

1 Check if our Mac is compatible with OS X Mavericks.

Upgrade mac operating system 10.8