Versions Of Operating System For Mac

Mac OS X was originally presented as the tenth major version of Apple’s operating system for Macintosh computers; current versions of macOS retain the major version number “10”. Previous Macintosh operating systems (versions of the classic Mac OS) were named using Arabic numerals, as. The first release of the new OS — Mac OS X Server 1.0 — used a modified version of the Mac OS GUI, but all client versions starting with Mac OS X Developer Preview 3 used a new theme known as Aqua. Aqua was a substantial departure from the Mac OS 9 interface, which had evolved with little change from that of the original Macintosh operating.

  1. Versions Of Operating System For Mac Operating System
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  3. Macintosh Operating Systems - Wikipedia
  4. MacOS Version History - Wikipedia

Have you noticed that once Apple releases a new version of the Mac operating system (macOS) that previous versions vanish from the App Store? Have you ever needed to reinstall one of these older versions of the Mac operating system (macOS)? It can be challenging to do this since Apple does not make older versions readily available unless you saved your own copy of the installer for the older version. I recently learned that some older versions are still available on the App Store.

[UpdateOctober2019 – Apple now offers a more straight forward way to download older versions of the Mac operating system (macOS) going back to OS X Yosemite (aka OS X 10.10).

  • Sep 28, 2020 An operating system is a fuel that is required to run your computer at your convenience. There are many OS out there that make it possible. Choose the best operating system that suits your needs and comfort. If you are looking for personal use like gaming and browsing, then Windows is perfect for you.
  • MacOS (originally named 'Mac OS X' until 2012 and then 'OS X' until 2016) is the current Mac operating system that officially succeeded the classic Mac OS in 2001. Although the system was originally marketed as simply 'version 10' of Mac OS, it has a history that is largely independent of the classic Mac OS. It is a Unix-based operating system built on NeXTSTEP and other technology developed.
  • Nov 15, 2019 The Latest Version is macOS Catalina. Apple’s newest Mac operating system is macOS 10.15, also known as macOS Catalina. This is the fifteenth major release of the Mac operating system. MacOS 10.14 Mojave supports most Macs from 2012 onward. If yours ran macOS 10.14 Mojave, it will almost certainly run Catalina.

Apple Support Web pages:


Links to App Store via Tidbits:

These installers have certificates that are valid until 2029.]

Versions Of Operating System For Mac Operating System

This article on has links for downloading some older versions of the Mac operating system (macOS). If you think you might ever need to install an older version then I recommend you download the installers now and then save the installer file so you can create your own install disk, if needed. This Apple support article currently provides instructions on how you can create your own installer disk for El Capitan, Sierra, High Sierra and Mojave. Alternatively you could use an application like DiskMaker X.

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As of February 2019, Apple has links to get these versions from the App Store:

Macintosh Operating Systems - Wikipedia

App Store links are not provided for older versions of the Mac operating system, such as El Capitan (10.11), Yosemite (10.10) or Mavericks (10.9). This is not a surprise since Apple only officially supports and maintains the 3 most recent versions of the Mac operating system (macOS).

MacOS Version History - Wikipedia

Links are also provided for buying an installer from Apple for Mountain Lion (10.8), Lion (10.7) and Snow Leopard (10.6) Over the decades, Apple has vacillated on whether or not they charged for the Mac operating system. The most recent vacillation came with the introduction of OS X Mavericks (aka OS X 10.9) in 2013, when Apple switched to offering it for free. Prior to that, Apple charged for the Mac operating system since the introduction of Mac OS 8 in the late 1990’s.