All macOS versions

Mac OS X version 10.5 Leopard, is the sixth major update to Mac OS X for Apple’s Macintosh computers, and was released on October 26, 2007. Mac OS X 10.5 Leopard was available as an upgrade to new Apple computers purchased after October 1, 2007 that did not already have Mac OS X 10.5 installed or a Leopard upgrade DVD included. Leopard was the last OS released by Apple to support both the Intel and PowerPC architects. It is the first version of Mac OS X to discontinue support for G3 systems and represents a new version of Aqua that Apple would use until Snow Leopard. It is also the latest version of Mac OS X to have support for Intel Pentium 4 processors, although this can only be seen with Hackintosh models as there are no retail Macs that ship with the Pentium 4s. The universal binary concept was expanded in Leopard, as separate versions for Intel and PowerPC Macs were merged in Leopard and installation media could be used for both systems. The first 64-bit Mac apps were designed ...

 Mac OS X version 10.4 Tiger, is the fifth major update to Mac OS X for Apple’s Macintosh computers, and was released on April 29, 2005. Mac Operating systems are definitely by far the best-operating systems in terms of features and reliability on those features. There are a lot of aspects that make these operating systems powerful. One very feature is the smooth transition while operating the system. now you can say that all systems have a limit, but the performance of these systems comparatively is very good and the creditability of the systems is on par. Apple released an operating system series called OS X. they started releasing a range of great operating systems, of which the Mac OS X tiger holds the record of being in use the longest. With the release of the Mac OS X Tiger, the software industry felt threatened because of the high-end performance of the system. this boosted up sales and also brought fame to the line-up of the Mac OS X series of operating systems.

 MacOS X 10.3, code named “Panther”, adds features such as Expose, fast user switching, and the Safari web browser. Released in October 2003, Mac OS X 10.3 Panther cut off “Old World ROM” Macs like the beige Power Mac G3s and some early PowerBook G3 models. Many users worked their way around this with third-party tools that would trick the installer. For their work, users were rewarded with a streamlined version of OS X with a revamped Finder (now clad in Brushed Metal, sadly), Fast User Switching, Exposé for window management, FileVault, Font Book and iChat AV, among other features and updates, including built-in Fax support.

 Jaguar was the first version of OS X to support Safari and the last the ship with Internet Explorer as its default browser. Apple’s release of it Safari web browser was Microsoft’s excuse to leave the Mac browser market. Jaguar improved performance across the board, especially for Classic Mode , and introduced Quartz Extreme, which lets the operating system offload graphics tasks to supported video cards (ATI Radeon and Nvidia GeForce 2 AGP and later video with at least 16 MB of VRAM). Mac OS X 10.2 Jaguar was released on 2002.08.24 and was last updated on 2003.10.03, when the 10.2.8 update was released. There were rumors that 10.2.9 would be released in mid-2009 to address several bugs and vulnerabilities that remained in version 10.2.8, but that never happened.

 Mac OS X Puma (10.1) is a version of Mac OS X that was released on 25 September 2001. It was more successful than its predecessor, because of the inclusion of features that existed on Mac OS 9 but not on Mac OS X 10.0 (Cheetah), and it fixed several stability issues; though it was still met with a mixed reception. Most builds of Puma were compiled for PPC (for public use) and x86 (for testing purposes for the upcoming partnership with Intel, which would continue until the announcement in 2005).

 Mac OS X 10.0, dubbed “ Cheetah ” went on sale on March 24, 2001. It brought the Aqua user interface and technology like preemptive multitasking and protected memory to a wider audience than the Public Beta. Cheetah required 128 MB of RAM, which seems meager today, but was more than most Mac users had in their systems at the time. Even machines that surpassed the system requirements ran slowly under Mac OS X, which was the number one complaint of users about the release.