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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 ...
Mac OS 8.0 introduces the most visible changes in the lineup, including the Platinum interface and a native PowerPC multithreaded Finder. Mac OS 8.1 introduces a new, more efficient file system named HFS Plus. Mac OS 8.5 is the first version of the Mac OS to require a PowerPC processor.
macOS Monterey is the final version of macOS that supports the 2015–2017 MacBook Air, Retina MacBook Pro, 2014 Mac Mini, 2015 iMac and cylindrical Mac Pro, as its successor, macOS Ventura, drops support for those models. It is the last version of macOS that can run on Macs with 4GB of RAM.
All Macs that supported macOS Sierra support macOS High Sierra. [8] iMac (Late 2009 or later) MacBook (Late 2009 or later) MacBook Air (Late 2010 or later) MacBook Pro (Mid 2010 or later) Mac Mini (Mid 2010 or later) iMac Pro (2017) Mac Pro (Mid 2010 or later) macOS High Sierra requires at least 2 GB of RAM and 20.12 GB of available disk space.
Apple [1] Disk Image is a disk image format commonly used by the macOS operating system. When opened, an Apple Disk Image is mounted as a volume within the Finder.. An Apple Disk Image can be structured according to one of several proprietary disk image formats, including the Universal Disk Image Format (UDIF) from Mac OS X and the New Disk Image Format (NDIF) from Mac OS 9.
Support for Macintosh clones was first exhibited in System 7.5.1, which was the first version to include the "Mac OS" logo (a variation on the original Happy Mac startup icon), and Mac OS 7.6 was the first to be named "Mac OS" instead of "System". These changes were made to disassociate the operating system from Apple's own Macintosh models.
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 Mac OS X Jaguar.Mac OS X 10.1 was released on September 25, 2001, as a free update for Mac OS X 10.0 users.
1. ↑ The Power Mac G5 had special Jaguar builds. 2. ↑ Tiger did not support 64-bit GUI applications, only 64-bit CLI applications. [22] [23]3. 1 2 32-bit (but not 64-bit) PowerPC applications were supported on Intel processors with Rosetta.