tailieunhanh - Lecture Operating system concepts (9/ed) - Chapter 2: Operating-System
In this chapter, the following content will be discussed: Operating system services, user operating system interface, system calls, types of system calls, system programs, operating system design and implementation, operating system structure, operating system debugging, operating system generation, system boot. | Chapter 2: Operating-System Structures Chapter 2: Operating-System Structures Operating System Services User Operating System Interface System Calls Types of System Calls System Programs Operating System Design and Implementation Operating System Structure Operating System Debugging Operating System Generation System Boot Objectives 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 explain how operating systems are installed and customized and how they boot Operating System Services Operating systems provide an environment for execution of programs and services to programs and users One set of operating-system services provides functions that are helpful to the user: User interface - Almost all operating systems have a user interface (UI). Varies between Command-Line (CLI), Graphics User Interface (GUI), Batch Program execution - The system must be able | Chapter 2: Operating-System Structures Chapter 2: Operating-System Structures Operating System Services User Operating System Interface System Calls Types of System Calls System Programs Operating System Design and Implementation Operating System Structure Operating System Debugging Operating System Generation System Boot Objectives 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 explain how operating systems are installed and customized and how they boot Operating System Services Operating systems provide an environment for execution of programs and services to programs and users One set of operating-system services provides functions that are helpful to the user: User interface - Almost all operating systems have a user interface (UI). Varies between Command-Line (CLI), Graphics User Interface (GUI), Batch Program execution - The system must be able to load a program into memory and to run that program, end execution, either normally or abnormally (indicating(cho biết) error) I/O operations - A running program may require I/O, which may involve(gồm) a file or an I/O device Operating System Services (Cont.) One set of operating-system services provides functions that are helpful to the user (Cont.): File-system manipulation - The file system is of particular(đ/biệt) interest. Programs need to read and write files and directories, create and delete them, search them, list file Information, permission management. Communications – Processes may exchange(trao đổi DL) information, on the same computer or between computers over a network Communications may be via shared memory or through message passing (packets(gói tin) moved by the OS) Error detection – OS needs to be constantly(l/luôn) aware(có kiến thức, nhận thức) of possible errors May occur in the CPU and memory hardware, in I/O devices, in user program For each type of .
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