Mac OS is a series of graphical user interface-based operating systems developed by Apple Inc. for their Macintosh line of computer systems. The original version was the integral and unnamed system software first introduced in 1984 with the original Macintosh, and referred to simply as the "System" software. The System was renamed to Mac OS in 1996 with version 7.6. The System is credited with popularizing the graphical user interface concept.Mac OS releases have existed in two major series. Up to major revision 9, from 1984 to 2000, it is historically known as Classic Mac OS. Major revision 10 (revisioned minorly, such as 10.0 through 10.9), from 2001 to present, has had the brand name of Mac OS X and now OS X. Both series share a general interface design and some shared application frameworks for compatibility, but also have deeply different architectures.
Design concept
Apple's original inception of the System deliberately sought to minimize the user's conceptual awareness of the operating system. Tasks which required more operating system knowledge on other systems would be accomplished by intuitive mouse gestures and simple graphic controls on a Macintosh, making the system more user-friendly and easily mastered. This would differentiate it from then current systems, such as MS-DOS, which were more technically challenging to operate.
The core of the system software was held in ROM, with updates originally provided free of charge by Apple dealers (on floppy disk). The user's involvement in an upgrade of the operating system was also minimized to running an installer, or simply replacing system files. This simplicity is what differentiated the product from others.
The core of the system software was held in ROM, with updates originally provided free of charge by Apple dealers (on floppy disk). The user's involvement in an upgrade of the operating system was also minimized to running an installer, or simply replacing system files. This simplicity is what differentiated the product from others.
OS X
OS X, introduced as Mac OS X and renamed OS X in 2012, is the latest version of Apple's operating system. Although it is officially designated as simply "version 10" of the Mac OS, it has a history largely independent of the earlier Mac OS releases.
The operating system is the successor to Mac OS 9 and the "classic" Mac OS. It is however a Unix-like operating system, based on the NeXTSTEP operating system and the Mach kernel which Apple acquired after purchasing NeXT Computer - with its CEO Steve Jobs returning to Apple at that time. OS X also makes use of the BSD code. There have been ten significant releases of OS X, the most recent being OS X 10.9, referred to as Mavericks. Prior to 10.9 came 10.8 - Mountain Lion, 10.7 - Lion, 10.6 - Snow Leopard, 10.5 - Leopard, 10.4 - Tiger, 10.3 - Panther, 10.2 - Jaguar, 10.1 - Puma, 10.0 - Cheetah.
OS X also had six significant releases as OS X Server. The first of these, Mac OS X Server 1.0, was released in beta in 1999. The server versions are architecturally identical to the client versions, with the differentiation found in their inclusion of tools for server management, including tools for managing OS X-based workgroups, mail servers, and web servers, amongst other tools. As of the name change to OS X, OS X Server is no longer sold as a separate operating system product. The server tools could then be added to the singular OS X product, giving the same functionality.
OS X Server is available as an operating system to-order on Mac Mini and Mac Pro computers as a part of a server package. Unlike the client version, OS X Server can be run in a virtual machine using emulation software such as Parallels Desktop and VMware Fusion.
OS X is also the basis for iOS, (previously iPhone OS) used on Apple's iPhone, iPod Touch, iPad, and Apple TV.
The operating system is the successor to Mac OS 9 and the "classic" Mac OS. It is however a Unix-like operating system, based on the NeXTSTEP operating system and the Mach kernel which Apple acquired after purchasing NeXT Computer - with its CEO Steve Jobs returning to Apple at that time. OS X also makes use of the BSD code. There have been ten significant releases of OS X, the most recent being OS X 10.9, referred to as Mavericks. Prior to 10.9 came 10.8 - Mountain Lion, 10.7 - Lion, 10.6 - Snow Leopard, 10.5 - Leopard, 10.4 - Tiger, 10.3 - Panther, 10.2 - Jaguar, 10.1 - Puma, 10.0 - Cheetah.
OS X also had six significant releases as OS X Server. The first of these, Mac OS X Server 1.0, was released in beta in 1999. The server versions are architecturally identical to the client versions, with the differentiation found in their inclusion of tools for server management, including tools for managing OS X-based workgroups, mail servers, and web servers, amongst other tools. As of the name change to OS X, OS X Server is no longer sold as a separate operating system product. The server tools could then be added to the singular OS X product, giving the same functionality.
OS X Server is available as an operating system to-order on Mac Mini and Mac Pro computers as a part of a server package. Unlike the client version, OS X Server can be run in a virtual machine using emulation software such as Parallels Desktop and VMware Fusion.
OS X is also the basis for iOS, (previously iPhone OS) used on Apple's iPhone, iPod Touch, iPad, and Apple TV.
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