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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 ...
A Commentary on the Sixth Edition UNIX Operating System by John Lions (later reissued as Lions' Commentary on UNIX 6th Edition [1] [2] and commonly referred to as the Lions Book) is a highly influential [3] 1976 publication containing analytical commentary on the source code of the 6th Edition Unix computer operating system "resident nucleus" [4] (i.e., kernel) software, plus copy formatted ...
These tables provide a comparison of operating systems, of computer devices, as listing general and technical information for a number of widely used and currently available PC or handheld (including smartphone and tablet computer) operating systems. The article "Usage share of operating systems" provides a broader, and more general, comparison ...
Linux is ubiquitously found on various types of hardware. The Linux kernel is a widely ported operating system kernel, available for devices ranging from mobile phones to supercomputers; it runs on a highly diverse range of computer architectures, including ARM -based Android smartphones and the IBM Z mainframes.
For the family of Mac operating systems, see Mac operating systems. For the Ugandan school nicknamed "Macos", see Makerere College School. macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001.
Unix ( / ˈjuːnɪks / ⓘ, YOO-niks; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 [1] at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.
Modern Operating Systems is a book written by Andrew Tanenbaum, a version (which does not target implementation) of his book Operating Systems: Design and Implementation. It is now in its 5th edition, published October 2022 ( ISBN 9780137618880 ), written together with Herbert Bos . Modern Operating Systems (mostly known as MOS) is a popular ...
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. MAI Basic Four – An OS implementing Business Basic from MAI Systems.