TAILIEUCHUNG - Lecture Operating system concepts (Sixth ed) - Chapter 3: Operating-system structures

Chapter 3 - Operating-system structures, provides new coverage of user interfaces for mobile device s, including d iscussions of iOSand A ndroid, and expanded coverage of Mac OS Xas a type of hybrid system. The objectives of this chapter are to describe the services an operating system provides to users, processes, and other systems; to discuss the various ways of structuring an operating system, to discuss the various ways of structuring an operating system. | Chapter 3 Operating-System Structures System Components Operating System Services System Calls System Programs System Structure Virtual Machines System Design and Implementation System Generation Operating System Concepts Silberschatz Galvin and Gagne 2002 Common System Components Process Management Main Memory Management File Management I O System Management Secondary Management Networking Protection System Command-Interpreter System Operating System Concepts Silberschatz Galvin and Gagne 2002 Process Management A process is a program in execution. A process needs certain resources including CPU time memory files and I O devices to accomplish its task. The operating system is responsible for the following activities in connection with process management. Process creation and deletion. process suspension and resumption. Provision of mechanisms for process synchronization process communication Operating System Concepts Silberschatz Galvin and Gagne 2002 Main-Memory Management Memory is a large array of words or bytes each with its own address. It is a repository of quickly accessible data shared by the CPU and I O devices. Main memory is a volatile storage device. It loses its contents in the case of system failure. The operating system is responsible for the following activities in connections with memory management Keep track of which parts of memory are currently being used and by whom. Decide which processes to load when memory space becomes available. Allocate and deallocate memory space as needed. Operating System Concepts Silberschatz Galvin and Gagne 2002 File Management A file is a collection of related information defined by its creator. Commonly files represent programs both source and object forms and data. The operating system is responsible for the following activities in connections with file management File creation and deletion. Directory creation and deletion. Support of primitives for manipulating files and directories. Mapping .

• Hệ điều hành
• Operating system concepts
• Lecture Operating system concepts
• Operating system
• Operating system structure
• Hệ điều hành
• Operating system structures
• Operating system services
• Operating system design
• Computer system organization
• Operating System Debugging
• Operating System Generation
• Types of System Calls
• Computer system structures
• File system interface
• File system implementation
• Computer system architecture
• The Linux system