COMPUTER BASICS LESSON 4 COMPUTER OPERATION SYSTEMS. Edited by C. 1Rhodes 9/11

Transcription

1 COMPUTER BASICS LESSON 4 COMPUTER OPERATION SYSTEMS Edited by C. 1Rhodes 9/11

2 ESSENTIAL STANDARD Computer Basics ESSENTIAL QUESTIONS What are the parts and features of a computer? What are the functions and components of operating systems, programs, and networks?

3 Computer Operating Systems Lesson 4 Objectives After completing this lesson, you will be able to: Explain the common functions of an operating system. Identify the basic components of the Windows user interface. Work with the Windows user interface within programs. Manage files and folders in Microsoft Windows Explorer. Perform basic file operations.

4 Computer Basics Lesson 4 Computer Operating Systems Topic 1 Functions of an Operating System

5 Functions of an Operating System An operating system controls how programs work with each other and how they interact with the computer hardware. creates the file system that determines how your data is stored within a storage device.

6 GUI Operating system such as Windows XP and Windows Vista provides a GUI that makes it easier for you to give instructions to a computer. Windows Vista Windows XP

7 Functions of an Operating System Provides a user interface which is the way a program presents itself to a user. Many operating systems provide visual elements, such as icons and menus, to help you interact with a computer. A mouse to select icons and issue commands. Example: double clicking a file to open it

8 An active window is an example of a user interface User Interface

9 Functions of an Operating System Provides utilities to configure your system Utilities are small programs that help you perform specific functions, such as connecting to a network, managing resources, and adding new programs to your computer.

10 Example of Utilities

11 Functions of an Operating System Helps manage computer resources Programs communicate with the operating system to work with the required hardware, such as the CPU, to complete required tasks such as printing and saving documents.

12 Functions of an Operating System Helps secure data by controlling user access to a computer It helps you specify authentication and authorization rights to control access to your computer and its resources.

13 Authentication The operating system uses a process called authentication to confirm or validate logon information. If a user wants to control the access rights to their computer they can specify a user name and password to log on to the computer.

14 Authentication Authentication the use of user names and passwords to limit access to a computer system

15 Authorization Authorization is the process by which the user can associate specific permissions to each username. Administrator has rights to do everything Bob cannot print because he uses all of Mom s ink Jennifer cannot install programs Steve is not allowed to delete any files because he is only 2 years old

16 Authorization Authorization the process of assigning rights or permissions to each user name

17 Computer Basics Lesson 4 Computer Operating Systems Topic 2 Introduction to the Windows Vista GUI

18 Components of a Windows User Interface Taskbar button Notification Area

19 Desktop Screen area that you can see when you log on to Windows

20 Components of a Windows User Interface Taskbar button Notification Area

21 Wallpaper is a pattern or picture on the screen background that you can choose. Wallpaper

22 Icons An icon is a small picture or symbol on a graphical user interface (GUI) that represents a program (or command), file, directory (also called a folder) or device (such as a hard disk or floppy).

23 Components of a Windows User Interface Taskbar button Notification Area

24 Taskbar Rectangular bar located at the bottom of the screen that shows what programs or windows you have open.

25 Components of a Windows User Interface Taskbar button Notification Area

26 Taskbar Button Shows the names of the programs or windows you have open Allows you to move between windows by clicking the button using the Key combination ALT+TAB

27 Components of a Windows User Interface Taskbar button Notification Area

28 Notification Area Displays the time, volume icon, and icons of some programs running.

29 Components of a Windows User Interface Taskbar button System Tray Notification Area

30 Check Your Work System Tray Notification Area Taskbar button

31 Computer Basics Lesson 4 Computer Operating Systems Topic 3 Start Menu Options

32 What component of the Windows user interface do you use to open the Programs menu? Go to next slide for answer

33 Start Button The Start menu is the central link to all the programs that are installed in your computer. You use the Start menu to run these programs open folders adjust computer settings

34 Computer Basics Lesson 4 Computer Operating Systems Topic 4 Working with Windows-Based Programs

35 Parts of a Microsoft Windows Based Window

36 Menu Bar o o A menu bar is a rectangular bar, usually at the top, in which you can select menus. These menus contain many commands to perform various functions in a program 36

37 Toolbar o o A toolbar can be a horizontal or vertical block of on-screen buttons or icons. You can click these buttons or icons to give commands to the program. 37

38 Minimize, Maximize, and Close buttons 38

39 Computer Basics Lesson 4 Computer Operating Systems Topic 5 Managing Files and Folders

40 Files and Folders A file is an electronic document, which can be a WORD document(.doc), a spreadsheet file (.xls), a MP3 file (.mp3) or a picture file (.jpeg). A folder is a container (directory) for programs and files in GUI interfaces. It is used to organize files or other folders.

41 Windows Explorer the program you use to help you find saved files.

42 WINDOWS EXPLORER The Windows Explorer window is often divided into two sections, called panes. The pane on the left side Folders pane, displays the structure of drives and folders on your computer. The pane on the right details pane, displays the contents of a drive or folder.

43 Different Views in Windows Explorer List only filenames are shown in the right column.

44 Different Views in Windows Explorer Details multiple columns of information are shown Size Type Date Modified Use this view to find the most recently saved file on your computer.

45 Different Views in Windows Explorer Icons Small picture or symbol

46 Different Views in Windows Explorer Thumbnails a very small image of any photograph or clip art is displayed. A small representation of an image is called a thumbnail.

47 Computer Basics Lesson 4 Computer Operating Systems Topic 6 Performing Basic File Operations

48 Saving Files Unless you have changed the default locations for saved items: Documents go to My Documents Pictures go to My Pictures Videos go to My Videos Music goes to My Music

49 File Formats Every file has a format that defines the way data is stored. The format is identified by a period added to a file name, followed by 3 or 4 letters. Word documents -.docx or.doc Images -.gif or.jpg Executable programs -.exe Multimedia files -.wma,.mp3

50 Cut and Paste When you cut or copy text or any object from a document it is saved on the Clipboard until you paste it in another location. Cut text or images moved from location to another Copy text or images are copied from one location to another

51 QUESTIONS 51