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

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...

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...

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...

macOS (previously OS X and originally Mac OS X) is a Unix-based operating system developed and marketed by Apple Inc. since 2001. It is the current operating...

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...

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....

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...

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...

is the core Unix-like operating system of macOS, iOS, watchOS, tvOS, iPadOS, audioOS, visionOS, and bridgeOS. It previously existed as an independent open-source...

macOS Sequoia (version 15) is the twenty-first and current major release of Apple's macOS operating system, the successor to macOS Sonoma. It was announced...

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...

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...

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...

adopted by Michael Everson for his fonts. Mac OS Inuit is used by the Inuktitut localisation of the classic Mac OS, which was overseen by the Baffin Bay Divisional...

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...

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...

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...

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...

Apple Inc provided on the company's iOS, iPadOS, visionOS, and macOS operating systems, the latter starting with OS X Mountain Lion. It functions as a service...

Mac OS 8 with that of OPENSTEP. Several existing classic Mac OS frameworks were ported, including QuickTime and AppleSearch. Rhapsody can run Mac OS 8...

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...

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...

macOS Mojave (/moʊˈhɑːvi, mə-/ mo-HAH-vee; version 10.14) is the fifteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh...

macOS Tahoe (version 26) is the upcoming twenty-second major release of Apple's macOS operating system. The successor to macOS Sequoia (macOS 15), it...

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...