Os x versions how to#
Os x versions mac os#
Os x versions install#

Depending on how tidy you are, this might take quite a bit of time. You can, of course, do so manually by deleting unused files and uninstalling old software to free up disk space. You’ll need around around eight gigabytes free depending on which macOS you downgrade to.Įven if you do have enough space, it’s a good idea to clean your computer before installing the desired operating system. Tabbing over to Storage will let you know how much disk space you have available. Clicking the apple in the top left corner of your desktop and selecting About This Mac will allow you to see what OS X version you are currently running. Make sure you are ready to downgrade your operating system by checking in with what version of OS X you already have and ensuring you have enough hard drive room to download the older version.

Os x versions install#

In this article, we’ll take you through everything you need to download and install an old OS X on your Mac.

Os x versions how to#

Below is a list of the different versions of OS X, along with their code names.Try free ✕ How to Install Old OS X on Your MacĪlthough you might think that going back to the old macOS is not possible by looking at the App Store Updates tab, it’s actually quite easy to do. While the OS X interface remains similar to the original version released in 2001, it has gone through several updates, which have each added numerous new features to the operating system.

OS X also includes an extensive API, or library of functions, that developers can use when writing Mac programs. It reallocates memory as necessary and frees up used memory when an application is quit. For example, when you double-click an application icon, OS X launches the corresponding program and provides memory to the application while it is running. It serves as the fundamental user interface, but also works behind the scenes, managing processes and applications. When you start up a Mac, OS X loads automatically. The Finder also displays a user-selectable desktop background that serves as a backdrop for icons and open windows. The Dock provides easy one-click access to frequently used applications and files. The Finder also includes a Dock, which is displayed by default on the bottom of the screen. The menu bar options change depending on what application is currently running and is only hidden when full screen mode is enabled. OS X does not have a task bar like Windows, but instead includes a menu bar, which is fixed at the top of the screen. The OS X desktop interface is called the Finder and includes several standard features. While the change forced Mac developers to rewrite their software programs, it provided necessary performance improvements and scalability for future generations of Macs.

Os x versions mac os#

This kernel provides OS X with better multithreading capabilities and improved memory management compared to Mac OS Classic. Like NeXTSTEP, OS X is based on Unix and uses the same Mach kernel. OS X was originally built from NeXTSTEP, an operating system designed by NeXT, which Apple acquired when Steve Jobs returned to Apple in 1997. It was called 'Mac OS X' until version OS X 10.8, when Apple dropped 'Mac' from the name. It was first released in 2001 and over the next few years replaced Mac OS 9 (also known as Mac OS Classic) as the standard OS for Macs.

OS X is Apple's operating system that runs on Macintosh computers.