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Symmetric multiprocessing system. Systems operating under a single OS (operating system) with two or more homogeneous processors and with a centralized shared main memory. A symmetric multiprocessor system (SMP) is a system with a pool of homogeneous processors running under a single OS with a centralized, shared main memory.
MS-DOS was the main operating system for IBM PC compatibles during the 1980s, from which point it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system. IBM licensed and re-released it in 1981 as PC DOS 1.0 for use in its PCs. Although ...
Early operating systems were very diverse, with each vendor or customer producing one or more operating systems specific to their particular mainframe computer. Every operating system, even from the same vendor, could have radically different models of commands, operating procedures, and such facilities as debugging aids.
Symbian was a mobile operating system (OS) and computing platform designed for smartphones. [6] It was originally developed as a proprietary software OS for personal digital assistants in 1998 by the Symbian Ltd. consortium. [7] Symbian OS is a descendant of Psion's EPOC, and was released exclusively on ARM processors, although an unreleased ...
Federated identity systems link a user's attributes to multiple systems, such as with single sign-on technologies. It is also used to manage pricing in service industries, where the requirement of bundling services and invoice customers according to these service-bundles needs independently, across product areas organized processing systems to ...
Components of some Linux desktop environments that are daemons include D-Bus, NetworkManager (here called unetwork), PulseAudio (usound), and Avahi.. In multitasking computer operating systems, a daemon (/ ˈ d iː m ən / or / ˈ d eɪ m ən /) [1] is a computer program that runs as a background process, rather than being under the direct control of an interactive user.
New graphical desktop movements grew up around Linux and similar operating systems, based on the X Window System. A new emphasis on providing an integrated and uniform interface to the user brought about new desktop environments, such as KDE Plasma 5, GNOME and Xfce which have supplanted CDE in popularity on both Unix and Unix-like operating ...
All data in IBM i, such as data files, source code, programs and regions of allocated memory, are encapsulated inside objects managed by the operating system (cf. the "Everything is a file" model in Unix).