List of Apple operating systems

List of Apple Operating Systems is a comprehensive catalog of the various operating systems developed and released by Apple Inc.. These operating systems have been designed to run on a variety of Apple's hardware, including Macintosh computers, the iPhone, iPad, and Apple Watch.

Macintosh Operating Systems

The Macintosh line of computers has seen a number of different operating systems throughout its history. The original Mac OS was introduced in 1984 and was the primary operating system for Macintosh computers until it was replaced by Mac OS X in 2001.

Mac OS

The original Mac OS, also known as System Software, was a graphical user interface-based operating system. It was notable for its ease of use and the introduction of many features that have since become standard in operating systems, such as the desktop metaphor and drag-and-drop functionality.

Mac OS X / macOS

Mac OS X, later rebranded as macOS, is a Unix-based operating system that was first released in 2001. It introduced a number of new features, including a more modern and attractive graphical user interface, improved performance and stability, and increased compatibility with other operating systems.

iOS

iOS is the operating system designed for Apple's mobile devices, including the iPhone and iPad. It was first released in 2007 alongside the original iPhone and has since become one of the most popular mobile operating systems in the world.

watchOS

watchOS is the operating system designed for the Apple Watch. It was first released in 2015 and is based on the same foundation as iOS.

tvOS

tvOS is the operating system designed for the Apple TV. It was first released in 2015 and, like watchOS, is based on the same foundation as iOS.

See Also

• History of Apple Inc.
• Timeline of Apple Inc. products