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20 years of Mac OS X: In pics

March 24 marks 20 years of the iconic Mac OS X, the successor to the classic Mac OS. Here’s looking back at how the journey has been through some vital photos. 

The first of the long list, the March 24, the Mac OS X, which was made available for purchase on March 14, 2001. 
1/9 The first of the long list, the March 24, the Mac OS X, which was made available for purchase on March 14, 2001.  (MacRumours)
Mac OS X 10.3 Panther Finder/Applications and About This Mac (2003)
2/9 Mac OS X 10.3 Panther Finder/Applications and About This Mac (2003) (Version Museum)
Mac OS X 10.6 Snow Leopard About Dialog (in Italian), launched in 2009. 
3/9 Mac OS X 10.6 Snow Leopard About Dialog (in Italian), launched in 2009.  (Version Museum)
In 2013, Apple brought in the OS X Mavericks. This was the first version of the Mac OS X that was not named after a big cat (Cheetah, Puma and the Mountain Lion all come before this.
4/9 In 2013, Apple brought in the OS X Mavericks. This was the first version of the Mac OS X that was not named after a big cat (Cheetah, Puma and the Mountain Lion all come before this. (MacRumours )
Mac OS X 10.9 Mavericks Launchpad (2013)
5/9 Mac OS X 10.9 Mavericks Launchpad (2013) (Version Museum)
Mac OS X 10.10 Yosemite Desktop and System Information Dialog (2014)
6/9 Mac OS X 10.10 Yosemite Desktop and System Information Dialog (2014) (Version Museum)
The next big change on the Mac OS X came in 2016 when Apple decided to drop the X from the nomenclature and launch the macOS 10.12 Sierra.
7/9 The next big change on the Mac OS X came in 2016 when Apple decided to drop the X from the nomenclature and launch the macOS 10.12 Sierra. (MacRumours)
macOS 10.14 Mojave About Dialog (2018)
8/9 macOS 10.14 Mojave About Dialog (2018) (Version Museum)
And, the latest - the macOS Big Sur. The Big Sur has been Apple’s biggest design update to the macOS since Mac OS X.
9/9 And, the latest - the macOS Big Sur. The Big Sur has been Apple’s biggest design update to the macOS since Mac OS X. (MacRumours)