Operating System (full)

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Operating System (full)

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Bài giảng tiếng anh chuyên ngành công nghệ thông tin trình bày Khái quát về hệ điều hành, nguồn gốc, cách phân loại, chức năng, nhiệm vụ của hệ điều hành.

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  1. “ Add your company slogan ” O per i   atng Syst em Group 5 LOGO
  2. Members  Đào Thị Hồng Nhung (Leader)  Ngô Thị Hiền  Cấn Thị Mai Hương  Đinh Thị Ngọc Anh  Đặng Trung Kiên  Hoàng Đình Bắc  Đỗ Văn Vi www.themegallery.com
  3. Introduction  Today, computers are seen as artificial intelligence, if any emotion, the computer must be friends with each of them  Ex: If the people need operating system to control behavior, emotions, body, so the computer must have an operating system to manage hardware and software resources on your computer www.themegallery.com
  4. Diagram applications Kernel CPU Memory Devices www.themegallery.com
  5. Diagram www.themegallery.com
  6. Notion  An operating system is a piece of software  Interface between the computer and the user  Ex: The first OS was the GM OS (genaeral motors OS) created in 1955
  7. Kinds of operating systems  There are two major kinds of operating systems  Command Line Interfaces(CLI) CLIs use only text and no graphics to display information and user navigates by mean of the shell Ex:MS - Dos,Linux  Graphical User Interfaces(GUI) A program interface that takes advantage of the computer’s graphics capabilities to make the program easier to use Ex:Windows,[X_Windowns],Macintosh OS
  8. History  Perhaps the most popular OS up untill the 1990's was Unix on the mainframe and [Ms-Dos] on the Pc  All versions of Linux and Mac OS X can trace their roots to directly back to the original Unix  Ms-Dos was microsoft corporation's predecessor to Windows
  9. MS-DOS and its information  MS-DOS was Microsoft corporation’s prececessor to Windows  A program designed by Tim paterson of Seattle Computer Products called QDOS  Bill Gates liked fuctionaly of it and bought  He rebranded it MS-DOS (Rename) and licensed it to IBM  MS-DOS became the underlying CLI for all of Microsoft’s GUI OS upto and including Windows XP www.themegallery.com
  10. Windows and Unix. What is over availability?  The main OS today on PCs is of course Microsoft Windows  Over 90% maket share  Windows stared out as a home and office OS.It has become a serious challenger to unix systems  Unix is a system of multi-tasking,multi- user and stability for severs,workstations and latops. Unix also has a graphical interface (GUI) such as microsoft windows www.themegallery.com
  11. The components of the operating system  The base unit of the operating system is a collection of programs called the kernel(the most basic layer which control the hardware and the file system) Kernel basic facilities  Process management  Memory management  Device management  System calls
  12. The components of the operating system  Other programs which help the kernel interface with the component and peripherals are called device drivers.  Another main task for an operating system is to control which users have access to specific parts of a computer’s resources  Ex: Requre users to authenticate with a username and password before being permitted to use the system resources OS will allow a system administrator to set permissions on a file or a directory www.themegallery.com
  13. Primary function of the operating system  Management of shared resources  A computer simulator expansion www.themegallery.com
  14. The task of the operating system  Control and direct management of hardware  Perform some basic operations in computer Ex: file management system  Provide a primitive system interface for applications  Providing a basic system commands to the machine operator (system command)  Provide basic services for software applications Ex: Web browser program, text editor www.themegallery.com
  15. Sort by some operating systems Một số cách phân loại hệ điều hành a. The type of computer b. Perspective of users and number of programs used at the same time c. User perspective (Access resources simultaneously) d. Angle sanctions (góc độ hình thức xử lý) www.themegallery.com
  16. a. The type of computer  The operating system for Mainframe computer  The operating system for Server computer  The operating system for Multiple CPU machine  Operating system for personal computers (PC)  The operating system for PDAs (Embedded OS - hệ điều hành nhúng)  The operating system for specific machine  Operating system for chip-card (SmartCard) www.themegallery.com
  17. b. Perspective of users and number of programs used at the same time  The operating system of a single user  Multi-tasking operating system a user  Multi-tasking operating system more user www.themegallery.com
  18. c. User perspective (Access resources simultaneously)  A user  Many users Ex: Peer Network Network with servers www.themegallery.com
  19. d. Angle sanctions (góc độ hình thức xử lý)  Batch processing system (Hệ thống xử lý theo lô)  Batch processing system has chapters (Hệ thống xử lý theo lô đa chương)  Time-sharing system  Parallel Systems (Hệ thống song song)  Distributed Systems (Phân tán)  Processing system in real time www.themegallery.com
  20. Utilities of Operating System (Tiện ích)  Modern operating systems also offer many utilities and conveniences including the ability to easily install and uninstall software application, monitor hardware, upgrade itself though a network connection (update), and more.  Even basic productivity applications such as web browsers and text editors are now include as standard on most operating system releases
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