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2. Operating system - Wikipedia

   en.wikipedia.org/wiki/Operating_system

   An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and other ...

3. macOS - Wikipedia

   en.wikipedia.org/wiki/MacOS

   At macOS's core is a POSIX-compliant operating system built on top of the XNU kernel, [78] (which incorporated large parts of FreeBSD kernel [11]) and FreeBSD userland [11] 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.

4. List of Apple operating systems - Wikipedia

   en.wikipedia.org/.../List_of_Apple_operating_systems

   The following is a list of operating systems released by Apple Inc. As of 2023, there are six supported software platforms: iOS, iPadOS, watchOS, tvOS, macOS and visionOS. Prior to the introduction of the Macintosh in early 1984, Apple had several operating systems for the Apple II series, Apple SOS for the Apple III series, and Lisa OS and ...

5. iOS - Wikipedia

   en.wikipedia.org/wiki/IOS

   iOS. iOS (formerly iPhone OS) [6] is a mobile operating system developed by Apple exclusively for its smartphones. It was unveiled in January 2007 for the first-generation iPhone, [7] launched in June 2007. It is the operating system that powers many of the company's mobile devices, including the iPhone.

6. List of operating systems - Wikipedia

   en.wikipedia.org/wiki/List_of_operating_systems

   Business Operating System (BOS) – developed to be ported across microcomputers. EOS – developed by ETA Systems for use in their ETA-10 line of supercomputers. EMBOS – developed by Elxsi for use on their mini-supercomputers. GCOS – a proprietary operating system originally developed by General Electric.

7. Mac operating systems - Wikipedia

   en.wikipedia.org/wiki/Mac_operating_systems

   The current Mac operating system is macOS, originally named Mac OS X until 2012 and then OS X until 2016. [ 3 ] It was developed between 1997 and 2001 after Apple's purchase of NeXT. It brought an entirely new architecture based on NeXTSTEP, a Unix system, that eliminated many of the technical challenges that the classic Mac OS faced, such as ...

8. Android (operating system) - Wikipedia

   en.wikipedia.org/wiki/Android_(operating_system)

   Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android has historically been developed by a consortium of developers known as the Open Handset Alliance, but its most widely used version is ...

9. Fire OS - Wikipedia

   en.wikipedia.org/wiki/Fire_OS

   Fire OS. Fire OS is a mobile operating system based on the Android Open Source Project (AOSP). It is developed by Amazon for their devices. Fire OS includes proprietary software, a customized user interface primarily centered on content consumption, and heavy ties to content available from Amazon's storefronts and services.