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The history of macOS, Apple 's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with 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 system Apple had used in its Mac computers since their ...
This is a list of built-in apps and system components developed by 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 on Apple's other operating systems, most often on iOS and iPadOS .
Big Sur is the successor to macOS Catalina, and was succeeded by macOS Monterey, which was released on October 25, 2021. The release of Big Sur was the first time the major version number of the operating system had been incremented since the Mac OS X Public Beta in 2000.
The architecture of macOS describes the layers of the operating system that is the culmination of Apple Inc. 's decade-long research and development process to replace the classic Mac OS .
The first desktop version, Mac OS X 10.0, was released on March 24, 2001. All releases from Mac OS X Leopard onward (except for OS X Lion) are UNIX 03 certified. [9] [10] The derivatives of macOS are Apple's other operating systems: iOS, iPadOS, watchOS, tvOS, and audioOS .
Get step-by-step instructions for determining the operating system (OS) version on your devices and why it is so important to keep the OS updated.
Apple File System ( APFS) is a proprietary file system developed and deployed by Apple Inc. for macOS Sierra (10.12.4) [6] and later, iOS 10.3, tvOS 10.2, [7] watchOS 3.2, [8] and all versions of iPadOS. [9] [10] It aims to fix core problems of HFS+ (also called Mac OS Extended), APFS's predecessor on these operating systems. APFS is optimized for solid-state drive storage and supports ...
Mac operating systems were developed by Apple Inc. in a succession of two major series. In 1984, Apple debuted the operating system 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 on every Macintosh until 2002 and offered on Macintosh ...