First, you want to decide whether your Mac can run the macOS or Mac OS X model that you really want to install. As a rule of thumb, you can assume that your Mac will run any model of macOS or Mac OS X that was supported when this Mac was launched, and any model that would be launched within a few years of purchase.

On older versions of Mac OS X and macOS you would have needed to partition your Mac, while in more modern versions of the Mac operating system you create a volume. Non-profit organization serving the online community by providing old versions of various programs. The first version of Mac OS X was Mac OS X Server 1.0. Mac OS X Server 1.0 – 1.2v3 were based on Rhapsody, a hybrid of OPENSTEP from NeXT Computer and Mac OS 8.5.1. The GUI looked like a mixture of Mac OS 8's Platinum appearance with OPENSTEP's NeXT -based interface. Feb 16, 2019 · How to See What Version of Mac OS is Running and Installed on a Mac. From anywhere on the Mac, look in the upper left corner for the Apple menu and click that. From the Apple menu choose “About This Mac”. The Mac system overview panel will appear on screen, showing what Mac OS release and version is installed on the computer.

Nov 15, 2019

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On older versions of Mac OS X and macOS you would have needed to partition your Mac, while in more modern versions of the Mac operating system you create a volume.

macOS and OS X version code-names | iMore Aug 15, 2018 Macs By Maximum Supported Version of Mac OS X (OS X The maximum version of Mac OS X, OS X, or macOS supported by each G3 and later Mac follows. For complete specs on a particular system, click the name of the Mac. For all Macs that are compatible with a specifc maximum supported version of Mac OS X -- courtesy of EveryMac.com's Ultimate Mac Sort -- click the OS of interest. List of Apple operating systems - Wikipedia System 1; System 2; System 3; System 4; System Software 5 – also marketed as System 5; System Software 6 – also marketed as System 6; System 7 – System 7.5.1 was the first to refer to itself as Mac OS, Mac OS 7.6 was the first to be branded as "Mac OS"; Mac OS 8; Mac OS 9 – Mac OS 9.2.2 was the last version of Classic Mac OS; Mac OS X / OS X / macOS