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...

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...

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...

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

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

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...

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 Mountain Lion (version 10.8) is the ninth major release of macOS, Apple Inc.'s desktop and server operating system for Macintosh computers. OS X...

versions of macOS, though the standard character encoding is now UTF-8. Apple modified Mac OS Roman in 1998 with the release of Mac OS 8.5 by replacing...

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....

Macintosh operating system through the end of Mac OS 9 in late 2001, but they were omitted from Mac OS X versions 10.0 to 10.2, before being reintroduced...

Mac OS X Server is a series of discontinued Unix-like server operating systems developed by Apple Inc., based on macOS. It provided server functionality...

on the classic Mac OS and Mac OS X from 1998 until it was superseded by Apple's own Safari web browser in 2003 with the release of Mac OS X 10.3 "Panther"...

Mac OS X Leopard (version 10.5) is the sixth major release of macOS, Apple's desktop and server operating system for Macintosh computers. Leopard was...

The Appearance Manager is a component of Mac OS 8 and Mac OS 9 that controls the overall look of the Macintosh graphical user interface widgets and supports...

iMovie 2, followed by Mac OS X 10.0 the following year. Aqua is the successor to Platinum, which was used in Mac OS 8, Mac OS 9, and developer releases...

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...

Mac OS X Snow Leopard (version 10.6) (also referred to as OS X Snow Leopard) is the seventh major release of macOS, Apple's desktop and server operating...

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...

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...

Mac OS X 10.0 (code named Cheetah) is the first major release of macOS, Apple's desktop and server operating system. It was released on March 24, 2001...

was intended to be released with the name System 8, and later after changing their naming style, Mac OS 8. Planned as a modern successor to the aging System...

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...

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...

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...

by Apple for the Mac OS X operating system. Carbon provided a good degree of backward compatibility for programs that ran on Mac OS 8 and 9. Developers...

On the classic Mac OS (the original Apple Macintosh operating system), extensions were small pieces of code that extended the system's functionality. They...

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...

Mac OS X 10.1 (code named Puma) is the second major release of macOS, Apple's desktop and server operating system. It superseded Mac OS X 10.0 and preceded...

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