翻訳と辞書
Words near each other
・ opendoc
・ opendocument
・ opengl
・ openinsight
・ openoffice.org
・ openstep
・ opentransport
・ openvms
・ openwindows
・ operand
operating system
・ operating system/360
・ operating system/multiprogramming of fixed tasks
・ operation code
・ operational database
・ operational requirements
・ operational semantics
・ operational test and evaluation
・ operational testing
・ operations support technician


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operating system : FOLDOC
operating system
(OS) The low-level software which handles the interface to peripheral hardware, schedules {tasks}, allocates storage, and presents a default interface to the user when no application program is running.
The OS may be split into a kernel which is always present and various system programs which use facilities provided by the kernel to perform higher-level {house-keeping} tasks, often acting as servers in a client-server relationship.
Some would include a graphical user interface and window system as part of the OS, others would not. The {operating system loader}, BIOS, or other firmware required at {boot time} or when installing the operating system would generally not be considered part of the operating system, though this distinction is unclear in the case of a {rommable operating system} such as RISC OS.
The facilities an operating system provides and its general design philosophy exert


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