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Objectives Overview

Objectives Overview. See Page 378 for Detailed Objectives. Objectives Overview. See Page 378 for Detailed Objectives. Operating Systems.

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Objectives Overview

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  1. Objectives Overview Discovering Computers 2014: Chapter 9 See Page 378 for Detailed Objectives

  2. Objectives Overview Discovering Computers 2014: Chapter 9 See Page 378 for Detailed Objectives

  3. 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 Page 378

  4. Operating Systems Discovering Computers 2014: Chapter 9 Page 379 Figure 9-1

  5. Operating System Functions • Starting Computers and Mobile Devices • If a computer or mobile device is off, you press a power button to turn it on Discovering Computers 2014: Chapter 9 Page 380 Figure 9-2

  6. Operating System Functions • An operating system includes various power options Discovering Computers 2014: Chapter 9 Page 381

  7. Operating System Functions • A user interface (UI)controls 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 Pages 381 – 382 Figure 9-3 Discovering Computers 2014: Chapter 9

  8. 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 Page 382 Figure 9-4

  9. Operating System Functions • How an operating system handles programs directly affects your productivity Discovering Computers 2014: Chapter 9 Pages 383 - 384

  10. Operating System Functions Discovering Computers 2014: Chapter 9 Page 383 Figure 9-5

  11. 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 Page 385 Figure 9-8

  12. Operating System Functions • The operating system determines the order in which tasks are processed Discovering Computers 2014: Chapter 9 Pages 386 – 387 Figure 9-9

  13. Operating System Functions Discovering Computers 2014: Chapter 9 Page 387

  14. Operating System Functions • Operating systems typically provide a means to establish Internet connections Discovering Computers 2014: Chapter 9 Page 388 Figure 9-10

  15. Operating System Functions • A performance monitoris a program that assesses and reports information about various computer resources and devices Discovering Computers 2014: Chapter 9 Page 389 Figure 9-11

  16. 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 Page 390

  17. Operating System Functions • Automatic updateautomatically provides new features or corrections to the program Discovering Computers 2014: Chapter 9 Page 390 Figure 9-12

  18. 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 Page 391 Discovering Computers 2014: Chapter 9

  19. 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 Page 392 Figure 9-13 Discovering Computers 2014: Chapter 9

  20. Types of Operating Systems Discovering Computers 2014: Chapter 9 Page 393 Table 9-2

  21. Desktop Operating Systems • A desktop operating systemis a complete operating system that works on desktops, laptops, and some tablets Discovering Computers 2014: Chapter 9 Page 394

  22. 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 Page 394

  23. Desktop Operating Systems Discovering Computers 2014: Chapter 9 Page 394

  24. 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 Page 396

  25. Desktop Operating Systems Discovering Computers 2014: Chapter 9 Pages 397 – 398 Figures 9-14 – 9-15

  26. Desktop Operating Systems • Chrome OSis a Linux-based operating system designed to work primarily with web apps Discovering Computers 2014: Chapter 9 Page 399 Figure 9-16

  27. Server Operating Systems Discovering Computers 2014: Chapter 9 Pages 399 - 400

  28. 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 Page 400

  29. Mobile Operating Systems • Androidis an open source, Linux-based mobile operating system designed by Google for smartphones and tablets Page 401 Figure 9-17 Discovering Computers 2014: Chapter 9

  30. Mobile Operating Systems • iOS, developed by Apple, is a proprietary mobile operating system specifically made for Apple’s mobile devices Page 402 Figure 9-18 Discovering Computers 2014: Chapter 9

  31. Mobile Operating Systems • Windows Phone, developed by Microsoft, is a proprietary mobile operating system that runs on some smartphones Page 402 Figure 9-19 Discovering Computers 2014: Chapter 9

  32. Summary Discovering Computers 2014: Chapter 9 Page 403

  33. Chapter 9 Complete

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