1 / 52

Chapter 3: SYSTEM SOFTWARE

U NIVERSITI P UTRA M ALAYSIA. Chapter 3: SYSTEM SOFTWARE. Learning Objectives. Explain methods of OS and utility program functions Use appropriate commands in OS and utility program. Objectives Overview. Discovering Computers 2014: Chapter 9. Objectives Overview.

arvidson
Download Presentation

Chapter 3: SYSTEM SOFTWARE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UNIVERSITI PUTRA MALAYSIA Chapter 3:SYSTEM SOFTWARE

  2. Discovering Computers 2014: Chapter 9 Learning Objectives • Explain methods of OS and utility program functions • Use appropriate commands in OS and utility program

  3. Objectives Overview Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  4. Objectives Overview Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  5. Discovering Computers 2014: Chapter 9 System Software • System softwareconsists of the programs that control or maintain the operations of the computer and its devices

  6. Operating Systems • An operating system(OS) is a set of programs containing instructions that work together to coordinate all the activities among computer and mobile device hardware Discovering Computers 2014: Chapter 9

  7. Operating Systems Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  8. Discovering Computers 2014: Chapter 9 Operating System Functions • The process of starting or restarting a computer is called booting

  9. Operating System Functions • An operating system includes various power options Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  10. Discovering Computers 2014: Chapter 9 Operating System Functions

  11. Operating System Functions • A user interfacecontrols how you enter data and instructions and how information is displayed on the screen • With a graphical user interface (GUI), you interact with menus and visual images Discovering Computers 2014: Chapter 9

  12. Operating System Functions • In a command-line interface, a user types commands represented by short keywords or abbreviations or presses special keys on the keyboard to enter data and instructions Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  13. Operating System Functions • How an operating system handles programs directly affects your productivity Discovering Computers 2014: Chapter 9

  14. Operating System Functions Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  15. Operating System Functions • Memory management optimizes the use of the computer or device’s internal memory • Virtual memoryis a portion of a storage medium functioning as additional RAM Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  16. Operating System Functions • The operating system determines the order in which tasks are processed Discovering Computers 2014: Chapter 9

  17. Operating System Functions Discovering Computers 2014: Chapter 9

  18. Operating System Functions • Operating systems typically provide a means to establish Internet connections Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  19. Operating System Functions • A performance monitoris a program that assesses and reports information about various computer resources and devices Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  20. Operating System Functions • Operating systems often provide users with a variety of tools related to managing a computer, its devices, or its programs Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  21. Operating System Functions • Automatic updateautomatically provides new features or corrections to the program Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  22. Operating System Functions • Some operating systems are designed to work with a server on a network • These multiuser operating systems allow multiple users to share a printer, Internet access, files, and programs • A network administrator uses the server operating system to: • Add and remove users, computers, and other devices • Configure the network, install software and administer network security Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  23. Operating System Functions • A user account enables a use to sign in to, or access resources on, a network or computer • A user name, or user ID, identifies a specific user • A passwordis a private combination of characters associated with the user name Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  24. Types of Operating Systems Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  25. Desktop Operating Systems • A desktop operating systemis a complete operating system that works on desktops, laptops, and some tablets Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  26. Desktop Operating Systems • Windows 8 offers these features: • Start screen interface with tiles • Includes the desktop interface • Support for input via touch, mouse, and keyboard • Email app, calendar app, and browser included • Photos, files, and settings you can sync with SkyDrive • Enhanced security through an antivirus program, firewall, and automatic updates • Windows Store offers additional applications for purchase Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  27. Desktop Operating Systems Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  28. Desktop Operating Systems • The Macintosh operating system has earned a reputation for its ease of use • Latest version is OS X Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  29. Desktop Operating Systems Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  30. Desktop Operating Systems • Chrome OSis a Linux-based operating system designed to work primarily with web apps Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  31. Server Operating Systems Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  32. Mobile Operating Systems • The operating system on mobile devices and many consumer electronics is called a mobile operating systemand resides on firmware Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  33. Mobile Operating Systems • Androidis an open source, Linux-based mobile operating system designed by Google for smartphones and tablets Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  34. Mobile Operating Systems • iOS, developed by Apple, is a proprietary mobile operating system specifically made for Apple’s mobile devices Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  35. Mobile Operating Systems • Windows Phone, developed by Microsoft, is a proprietary mobile operating system that runs on some smartphones Discovering Computers 2014: Chapter 9 Discovering Computers 2014: Chapter 9

  36. Embedded Operating Systems Discovering Computers 2014: Chapter 9

  37. Utility Programs • A utility programis a type of system software that allows a user to perform maintenance-type tasks Discovering Computers 2014: Chapter 4

  38. File and Disk Management Tools • A file manager is a tool that performs functions related to file management Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  39. File and Disk Management Tools • A search tool is a program, usually included with an operating system, that attempts to locate a file on your computer or mobile device based on criteria you specify Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  40. File and Disk Management Tools • An image viewer is a tool that allows users to display, copy, and print the contents of a graphics file, such as a photo • An uninstalleris a tool that removes a program, as well as any associated entries in the system files Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  41. File and Disk Management Tools • A disk cleanup tool searches for and removes unnecessary files Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  42. File and Disk Management Tools • A disk defragmenter is a tool that reorganizes the files and unused space on a computer’s hard disk so that the operating system accesses data more quickly and programs run faster • Defragmenting Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  43. File and Disk Management Tools Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  44. File and Disk Management Tools • A backup tool allows users to copy, or back up, selected files or the contents of an entire storagemedium to another storage location • A restore utility reverses the process and returns backed up files to their original form Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  45. Security Tools • A personal firewall is a security tool that detects and protects a personal computer and its data from unauthorized intrusions Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  46. Security Tools • An antivirus programprotects a computer against viruses by identifying and removing any computer viruses found in memory, on storage media, or on incoming files Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  47. Security Tools

  48. Security Tools

  49. Security Tools • Spyware is a program placed on a computer or mobile device without the user’s knowledge that secretly collects information about the user and then communicates the information it collectsto some outside source while the user is online • Adware is a program that displays an online advertisement in a banner or pop-up window on webpages, email messages, or other Internet services Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

  50. Security Tools Discovering Computers 2014: Chapter 4 Discovering Computers 2014: Chapter 4

More Related