Transcription of Operating System Structure
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Operating System Structure
CSE325 Principles of Operating SystemsOperating System StructureDavid 27, 20112A View of Operating System Services1/26/2011 CSE325 - OS Structure1/26/2011 CSE325 - OS Structure3 Operating System Design and Implementation Affected by choice of hardware, type of System Usergoals and Systemgoals User goals Operating System should be convenient to use, easy to learn, reliable, safe, secure, and fast System goals Operating System should be easy to design, implement, and maintain, as well as flexible, reliable, error-free, secure, and efficient Important principle to separatePolicy:What will be done?Mechanism: How to do it? The separation of policy from mechanism is a very important principle, it allows maximum flexibilityif policy decisions are to be changed laterOperating Systems Structures Structure /Organization/Layout of (one unstructured program) Machines The role of VirtualizationCSE325 - OS StructureCSE325 - OS StructureMonolithic Operating System1/26/20115 Monolithic OS Basic Structure Application programs that invoke the requested System services.
Jan 27, 2011 · Operating System Design and Implementation Affected by choice of hardware, type of system Usergoals and Systemgoals User goals – operating system should be convenient to use, easy to learn, reliable, safe, secure, and fast System goals – operating system should be easy to design, implement, and maintain, as well as flexible, reliable, error-
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