TAILIEUCHUNG - Lecture Operating system principles - Chapter 3: Process description and control

Chapter 3 - Process description and control. This chapter refers to virtual memory. Much of the time, we can ignore this concept in dealing with processes, but at certain points in the discussion, virtual memory considerations are pertinent. | Chapter 3 Process Description and Control What is a process? Process states which characterize the behaviour of processes. Data structures used to manage processes. Ways in which the OS uses these data structures to control process execution. Requirements of an Operating System Fundamental Task: Process Management The Operating System must Interleave the execution of multiple processes Allocate resources to processes Protect the resources of each process from other processes Enable processes to share and exchange information Enable synchronization among processes. What is a “process”? A program in execution An instance of a program running on a computer The entity that can be assigned to and executed on a processor A unit of activity characterized by the execution of a sequence of instructions, a current state, and an associated set of system resources Process Elements A process is comprised of: Program code (possibly shared) A set of data associated with the code A number

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