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Macintosh System Software
"System 1" was the first Apple Macintosh operating system version and the beginning of the classic Mac OS series. It ran on the Motorola 68000 microprocessor.
The features of the operating system included the Finder and menu bar. In addition to this, it popularized the graphical user interface and desktop metaphor, which was used under license from Xerox PARC. -
Mac OS 9
Mac OS 9 is the ninth and final major release of Apple's classic Mac OS operating system. Introduced on October 23, 1999, it was promoted by Apple as "The Best Internet Operating System Ever", highlighting Sherlock 2's Internet search capabilities, integration with Apple's free online services known as iTools and improved Open Transport networking. -
Mac OS X 10.0
Mac OS X 10.0 code named Cheetah, is the first major release of Mac OS X (later named OS X and then macOS), Apple’s desktop and server operating system. For a price of US$ 129.
Mac OS X 10.0 was a radical departure from the classic Mac OS and was Apple’s long-awaited answer for a next generation Macintosh operating system. It introduced a brand new code base completely separate from Mac OS 9's. Mac OS X introduced the new Darwin Unix-like core and a completely new system of memory management. -
Mac OS X 10.1
Mac OS X version 10.1, code named Puma, is the second major release of Mac OS X (now named macOS), Apple's desktop and server operating system. It superseded Mac OS X 10.0 and preceded Mac OS X 10.2. Version 10.1 was released on September 25, 2001 as a free update for Mac OS X 10.0 users. The operating system was handed out for no charge by Apple employees after Steve Jobs' keynote speech at the Seybold publishing conference in San Francisco. -
Mac OS X 10.2
Mac OS X Jaguar, version 10.2, is the third major release of Mac OS X, Apple's desktop and server operating system.The operating system was released either for single-computer installations, and in a “family pack,”.The operating system was generally well received by most Mac users as a large step forward in the areas of stability, general speed enhancements, compatibility with other flavors of Unix and the lineup of both graphical and terminal applications available -
Mac Os X Panther
is the fourth major release of Mac OS X, Apple’s desktop and server operating system.
MacOS X is based on NeXTSTEP, a Unix-based OS. The first consumer release also featured a new user interface appearance called "Aqua". -
Mac OS X Tiger
Mac OS X 10.4 Tiger is the fifth major release of Mac OS X (now named macOS), Apple's desktop and server operating system for Mac computers. Tiger was released to the public on April 29, 2005 for US$129.95 as the successor to Mac OS X 10.3 Panther. Some of the new features included a fast searching system called Spotlight, a new version of the Safari web browser, Dashboard, a new ‘Unified’ theme, and improved support for 64-bit addressing on Power Mac G5s. -
Mac OS X Leopard
Is the sixth major release of Mac OS X (now named macOS), Apple's desktop and server operating system for Macintosh computers. Leopard was released on October 26, 2007 as the successor of Tiger, and is available in two editions: a desktop version suitable for personal computers, and a server version, Mac OS X Server. It retailed for $129 for the desktop version and $499 for Server. -
Mac OS X Snow Leopard
Was made available for purchase from Apple's website and its retail stores at the price of US$29 for a single-user license. As a result of the low price, initial sales of Snow Leopard were significantly higher than that of its predecessors. The release of Snow Leopard came nearly two years after the introduction of Mac OS X Leopard, the second longest time span between successive Mac OS X releases. -
Mac OS X Lion
Is the eighth major release of Mac OS X, Apple's desktop and server operating system for Macintosh computers. The first developer preview of Lion added TRIM support for Solid-state drives (SSD) shipped with Macs, which is also included in the latest version of Snow Leopard (10.6.8) shipping with current MacBook Pros before July 20, 2011. Other SSDs have built-in TRIM-like optimization, while yet others require OS patching.
