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Operating system development may come from entirely new concepts, or may commence by modeling an existing operating system. In either case, the hobbyist is her/his own developer, or may interact with a small and sometimes unstructured group of individuals who have like interests. Examples of hobby operating systems include Syllable and TempleOS.
At macOS's core is a POSIX-compliant operating system built on top of the XNU kernel, (which incorporated large parts of FreeBSD kernel) and FreeBSD userland for the standard Unix facilities available from the command line interface. Apple has released this family of software as a free and open source operating system named Darwin.
The article "Usage share of operating systems" provides a broader, and more general, comparison of operating systems that includes servers, mainframes and supercomputers . Because of the large number and variety of available Linux distributions, they are all grouped under a single entry; see comparison of Linux distributions for a detailed ...
ChromiumOS is an open source operating system development version of ChromeOS. Both operating systems are based on the Linux kernel. ChromeOS is designed to work exclusively with web applications, though has been updated to run Android apps with full support for Google Play Store. Announced on July 7, 2009, ChromeOS is currently publicly ...
Haiku, originally OpenBeOS, is a free and open-source operating system for personal computers. It is a community-driven continuation of BeOS and aims to be binary-compatible with it, but is largely a reimplementation with the exception of certain components like the Deskbar. [7] The Haiku project began in 2001, supported by the nonprofit Haiku ...
B. binary semaphore: See semaphore. booting: In computing, booting (also known as booting up) is the initial set of operations that a computer performs after electrical power is switched on or when the computer is reset. This can take tens of seconds and typically involves performing a power-on self-test, locating and initializing peripheral ...
macOS is the basis for some of Apple's other operating systems, including iPhone OS/iOS, iPadOS, watchOS, tvOS, and visionOS. Releases The "X" logo for Mac OS X versions 10.0 "Cheetah" and 10.1 "Puma", released in 2001 Desktop. The first version of the system was released on March 24, 2001, supporting the Aqua user interface. Since then ...
Comparison of operating systems. Comparison of Linux distributions. Comparison of BSD operating systems. Comparison of kernels. Comparison of file systems. Comparison of platform virtualization software. Comparison of DOS operating systems. List of operating systems. Live CD.