TAILIEUCHUNG - Lecture Operating system concepts - Lecture 4

The objectives of this chapter are to introduce the notion of a process a program in execution, which forms the basis of all computation; to describe the various features of processes, including scheduling, creation, and termination; to explore interprocess communication using shared memory and mes- sage passing. | CSC 322 Operating Systems Concepts Lecture - 4: by Ahmed Mumtaz Mustehsan Special Thanks To: Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. (Chapter-1) Ahmed Mumtaz Mustehsan, CIIT, Islamabad 1 A process is a Program in execution. A process is fundamentally a container that holds all the information needed to run a program. It requires a system call to create and delete a process. Address space of a process (0 to maximum memory a process can access. ) Address space contains: The instructions, the data, stack, a set of resources, registers (including PC and SP), a list of open files, set alarms, lists of related processes, and other information needed to run the program. Processes Lecture 4 2 Ahmed Mumtaz Mustehsan, CIIT, Islamabad Process Table: (Data structure one per process) Operating system table called the process table, which is an array (or linked list) of structures, One for each process currently in existence. Keeps info about process other than the .

• Hệ điều hành
• Operating system
• Operating system concept
• Memory management
• File systems
• Operating systems design
• Operating system structure
• Operating system concepts
• Lecture Operating system concepts
• Operating system services
• Operating system structures
• Operating system design
• Hệ điều hành
• Computer system organization
• Operating System Debugging
• Operating System Generation
• Types of System Calls
• Lecture Operating system principles
• Computer system
• Modern operating systems
• Evolution of operating systems
• Computer system structures
• File system interface
• File system implementation
• Computer system architecture
• The Linux system