

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 Mac 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 ChromeOS. It is the primary operating system for Apple's Mac computers. macOS runs on Apple’s Mac computers, including the MacBook, which is Apple’s laptop PC product including the MacBook Pro and MacBook Air, and the iMac – Apple’s desktop computer.MacOS ( / ˌ m æ k oʊ ˈ ɛ s/ previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. A older version of macOS, Catalina, is currently the most popular macOS, now run on 81.7 percent of the Apple computers as of December 2021. The most recent version, macOS Ventura, is the nineteenth release of macOS. Having an equally long history, Apple’s Mac operating system (macOS, previously Mac OS X and OS X) also went through different releases. In 2022, approximately 65 million PCs were shipped with Windows operating systems installed. Windows 10 is the newest addition to the family, being able to run on PCs, tablets and embedded devices. Notable versions include Windows 95, Windows XP, and Windows 7.

Linux, the third most popular desktop OS, has a small but stable share of the market.įrom its initial release in 1985, Microsoft Windows has gone through endless mutations. Apple’s Mac operating system has gained market share over the years, albeit remaining a minor player in the desktop OS market. Microsoft Windows was the dominant desktop operating system (OS) worldwide as of January 2023, with a share of just over 74 percent.
