Mac OS (originally System Software; retronym: Classic Mac OS) is the series of operating systems developed for the Macintosh family of personal computers...

ChromeOS and SteamOS. As of 2024[update], the most recent release of macOS is macOS 15 Sequoia, the 21st major version of macOS. Mac OS X succeeded classic...

Mac OS 9 is the ninth and final major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. Introduced on October...

Apple Inc. for macOS that come bundled by default or are installed through a system update. Many of the default programs found on macOS have counterparts...

the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9, was a direct descendant of the operating...

2001, for a price of $129 after a public beta. Mac OS X was Apple's successor to the classic Mac OS. It was derived from NeXTSTEP and FreeBSD, and featured...

Mac OS 8 is the eighth major release of the classic Mac OS operating system for Macintosh computers, released by Apple Computer on July 26, 1997. It includes...

that is now known as the classic Mac OS with its release of the original Macintosh System Software. The system, rebranded Mac OS in 1997, was pre-installed...

is a list of Mac software – notable computer applications for current macOS operating systems. For software designed for the Classic Mac OS, see List of...

of GS/OS on the Apple IIGS. It was rewritten completely with the release of Mac OS X in 2001. In a tradition dating back to the Classic Mac OS of the...

Mac OS X Panther (version 10.3) is the fourth major release of macOS, Apple's desktop and server operating system. It followed Mac OS X Jaguar and preceded...

of Mac OS 8's "Platinum" user interface) or Carbon API. Mac OS X Server 1.0 contains a mix of features from the classic Mac OS, NeXTSTEP and Mac OS X....

Historically, the classic Mac OS used a form of memory management that has fallen out of favor in modern systems. Criticism of this approach was one of...

Mac OS Roman is a character encoding created by Apple Computer, Inc. for use by Macintosh computers. It is suitable for representing text in English and...

similarly to Classic Mac OS and to iOS and Apple's other current OSes. For the first time since OS X Yosemite six years earlier, macOS Big Sur features...

System. The original control panels in the earliest versions of the classic Mac OS were all combined into one small Desk Accessory. Susan Kare designed...

either Mac OS X or the classic Mac OS. As the market has increasingly moved to the Cocoa-based frameworks, especially after the release of iOS, the need...

runs on current Macs. The software might require Mac OS 9 or other versions of the classic Mac OS that doesn't run on Apple's current Macs. Note that most...

In classic Mac OS System 7 and later, and in macOS, an alias is a small file that represents another object in a local, remote, or removable file system...

Mac OS X Tiger (version 10.4) is the 5th major release of macOS, Apple's desktop and server operating system for Mac computers. Tiger was released to the...

Inc.'s decades-long research and development process to replace the classic Mac OS. After the failures of their previous attempts—Pink, which started as...

OS X Lion, also known as Mac OS X Lion, (version 10.7) is the eighth major release of macOS, Apple's desktop and server operating system for Mac computers...

Mac Classic may refer to: Macintosh Classic, a model of Macintosh computer Classic Environment, a compatibility layer for Mac OS 9 included in Mac OS...

OS X Yosemite (/joʊˈsɛmɪti/ yoh-SEM-it-ee; version 10.10) is the eleventh major release of macOS, Apple Inc.'s desktop and server operating system for...

System 7 (later named Mac OS 7) is the seventh major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. It...

macOS Sonoma (version 14) is the twentieth major release of macOS, Apple's operating system for Mac computers. The successor to macOS Ventura, it was...

OS X Mavericks (version 10.9) is the 10th major release of macOS, Apple Inc.'s desktop and server operating system for Macintosh computers. OS X Mavericks...

Time Machine is the backup mechanism of macOS, the desktop operating system developed by Apple. The software is designed to work with both local storage...

OS X El Capitan (/ɛl ˌkæpɪˈtɑːn/ el KAP-i-TAHN) (version 10.11) is the twelfth major release of macOS (named OS X at the time of El Capitan's release)...

Mac OS X Jaguar (version 10.2) is the third major release of macOS, Apple's desktop and server operating system. It superseded Mac OS X 10.1 and preceded...