1. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.1 Technology In Action Chapter 5 Using System Software: The Operating System, Utility Programs, and File Management Chapter 5 Using System Software: The Operating System, Utility Programs, and File Management NEXT SLIDE

2. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.2 SoftwareSoftware Application softwareApplication software System softwareSystem software –Operating system –Utility programs Application softwareApplication software System softwareSystem software –Operating system –Utility programs NEXT SLIDE

3. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.3 System Software Operating systems Control computer functions:Control computer functions: –Hardware –Memory –Application programs –System maintenance Provide user interfaceProvide user interface Operating systems Control computer functions:Control computer functions: –Hardware –Memory –Application programs –System maintenance Provide user interfaceProvide user interface System utilities Programs that perform computer housekeeping tasks:Programs that perform computer housekeeping tasks: – Manage system resources – Improve efficiency – Virus prevention NEXT SLIDE

4. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.4 Operating System Categories Four categories:Four categories: –Real-Time (RTOS): specific purpose & certain result specific purpose & certain result Example: QNX 4 and Lynx Example: QNX 4 and Lynx –Single-User, Single-Task One task at one time One task at one time PDAs, palm OS, Pocket PC, MS-DOS PDAs, palm OS, Pocket PC, MS-DOS –Single-User, Multitask Simultaneous tasks Simultaneous tasks Windows, MAC OS, Linux Windows, MAC OS, Linux –Multi-user Network os Network os Unix, Novell netware, windows server 2003 Unix, Novell netware, windows server 2003 Four categories:Four categories: –Real-Time (RTOS): specific purpose & certain result specific purpose & certain result Example: QNX 4 and Lynx Example: QNX 4 and Lynx –Single-User, Single-Task One task at one time One task at one time PDAs, palm OS, Pocket PC, MS-DOS PDAs, palm OS, Pocket PC, MS-DOS –Single-User, Multitask Simultaneous tasks Simultaneous tasks Windows, MAC OS, Linux Windows, MAC OS, Linux –Multi-user Network os Network os Unix, Novell netware, windows server 2003 Unix, Novell netware, windows server 2003 NEXT SLIDE

5. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.5 What OS do they have? MP3 playerMP3 player Apple PowerBookApple PowerBook Home networkHome network Digital video cameraDigital video camera Cell phoneCell phone MP3 playerMP3 player Apple PowerBookApple PowerBook Home networkHome network Digital video cameraDigital video camera Cell phoneCell phone NEXT SLIDE

6. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.6 Desktop Operating Systems Operating system combined with the processor is known as a platformOperating system combined with the processor is known as a platform –Microsoft Windows / Intel –Apple Macintosh / Motorola Desktop operating systems include:Desktop operating systems include: –Microsoft Windows –MAC OS –UNIX –Linux Operating system combined with the processor is known as a platformOperating system combined with the processor is known as a platform –Microsoft Windows / Intel –Apple Macintosh / Motorola Desktop operating systems include:Desktop operating systems include: –Microsoft Windows –MAC OS –UNIX –Linux NEXT SLIDE

7. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.7 Microsoft Windows & Mac OS WIndowsWIndows –Generally work with Intel processors –Windows 95 introduce “Plug and Play” Mac OSMac OS –First OS with “point-and-click” user interface –Excels in: Graphics display Graphics display Processing capabilities Processing capabilities System reliability System reliability Document recovery Document recovery –Price/fewer applications WIndowsWIndows –Generally work with Intel processors –Windows 95 introduce “Plug and Play” Mac OSMac OS –First OS with “point-and-click” user interface –Excels in: Graphics display Graphics display Processing capabilities Processing capabilities System reliability System reliability Document recovery Document recovery –Price/fewer applications NEXT SLIDE

8. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.8 UNIX & LINUX UNIXUNIX –Multi-user, multitask operating system –Used primarily with mainframes LinuxLinux –Open-source OS –Based on UNIX –Free –stable UNIXUNIX –Multi-user, multitask operating system –Used primarily with mainframes LinuxLinux –Open-source OS –Based on UNIX –Free –stable NEXT SLIDE

9. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.9 What the Operating System Does Provides user interfaceProvides user interface –Command-driven interface –Menu-driven interface –Graphical user interface Manages the CPUManages the CPU –Controls the timing of events the processor works on –Event –Interrupt / interrupt handler / interrupt table Provides user interfaceProvides user interface –Command-driven interface –Menu-driven interface –Graphical user interface Manages the CPUManages the CPU –Controls the timing of events the processor works on –Event –Interrupt / interrupt handler / interrupt table

10. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.10 What the Operating System Does Manages memoryManages memory –RAM –Virtual memory (hard drive) –Swap file, paging, thrashing Manages hardwareManages hardware –Device driver –Plug and play (PnP) Coordinates application software with the CPUCoordinates application software with the CPU –Application programming interfaces (API) Manages memoryManages memory –RAM –Virtual memory (hard drive) –Swap file, paging, thrashing Manages hardwareManages hardware –Device driver –Plug and play (PnP) Coordinates application software with the CPUCoordinates application software with the CPU –Application programming interfaces (API)

11. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.11 Starting the Computer The boot process Step 1: The basic input/output system (BIOS) is activatedStep 1: The basic input/output system (BIOS) is activated Step 2: A Power-on- self-test (POST) checks attached hardwareStep 2: A Power-on- self-test (POST) checks attached hardware Step 3: The operating system loads into memoryStep 3: The operating system loads into memory Step 4: Configuration and customization settings are checkedStep 4: Configuration and customization settings are checked The boot process Step 1: The basic input/output system (BIOS) is activatedStep 1: The basic input/output system (BIOS) is activated Step 2: A Power-on- self-test (POST) checks attached hardwareStep 2: A Power-on- self-test (POST) checks attached hardware Step 3: The operating system loads into memoryStep 3: The operating system loads into memory Step 4: Configuration and customization settings are checkedStep 4: Configuration and customization settings are checked 1 2 3 4 NEXT SLIDE

12. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.12 Handling Errors in the Boot Process Non-system disk or disk errorNon-system disk or disk error –Remove the floppy from the drive and press any key POST errorsPOST errors –Single beep: Everything is loading properly –Series of beeps: Hardware problem Safe modeSafe mode –Windows does not boot properly –Uninstall any new devices or software Non-system disk or disk errorNon-system disk or disk error –Remove the floppy from the drive and press any key POST errorsPOST errors –Single beep: Everything is loading properly –Series of beeps: Hardware problem Safe modeSafe mode –Windows does not boot properly –Uninstall any new devices or software NEXT SLIDE

13. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.13 DesktopDesktop WindowsWindows –Toolbars –Scrollbars –control buttons IconsIcons Start menuStart menu … WindowsWindows –Toolbars –Scrollbars –control buttons IconsIcons Start menuStart menu …

14. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.14 File Management The operating system provides an organizational structure to the computer’s contentsThe operating system provides an organizational structure to the computer’s contents Hierarchical structure of directories:Hierarchical structure of directories: –Drives Folders Folders  Subfolders »Files The operating system provides an organizational structure to the computer’s contentsThe operating system provides an organizational structure to the computer’s contents Hierarchical structure of directories:Hierarchical structure of directories: –Drives Folders Folders  Subfolders »Files NEXT SLIDE

15. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.15 Viewing and Sorting Files and Folders Windows Explorer views:Windows Explorer views: –Thumbnails –Tiles –Icon –List –Details –Sorted and grouped Windows Explorer views:Windows Explorer views: –Thumbnails –Tiles –Icon –List –Details –Sorted and grouped NEXT SLIDE

16. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.16 C: Tech in Action\TIA Pics\ \My Documents\ dotmatrix.gif Drive Primary folder Secondary folders Filename NEXT SLIDE Naming Files Filename:Filename: –Name assigned plus filename extension Filename extensions:Filename extensions: –Used by programs File path:File path: –Location of the file Filename:Filename: –Name assigned plus filename extension Filename extensions:Filename extensions: –Used by programs File path:File path: –Location of the file Bioreport.doc or Bio report.docExtension Type of Document Application.doc Word processing document Microsoft Word; Corel Word Perfect.xlsWorkbook Microsoft Excel.ppt PowerPoint presentation Microsoft PowerPoint.mdbDatabase Microsoft Access.bmp Bitmap image Windows.zip Compressed file WinZip.pdf Portable Document Format Adobe Acrobat.htm or.html Web page Hypertext Markup Language

17. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.17 ExampleExample Your Computer Drive A: Floppy Drive C: Hard Disk My Documents Classes Computer Concepts Chap5.doc Personal My Pictures Drive F: Network

18. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.18 Working with Files File management actions:File management actions: –Open –Copy –Move –Rename –Delete Recycle binRecycle bin File management actions:File management actions: –Open –Copy –Move –Rename –Delete Recycle binRecycle bin NEXT SLIDE

19. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.19 Utility Programs Small application programs that perform special functions:Small application programs that perform special functions: –Manage system resources –Create pleasant environment –Improve efficiency Small application programs that perform special functions:Small application programs that perform special functions: –Manage system resources –Create pleasant environment –Improve efficiency

20. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.20 Display Utilities Change the appearance of:Change the appearance of: –Desktop –Windows colors –Font sizes –Screen savers –Screen resolution Change the appearance of:Change the appearance of: –Desktop –Windows colors –Font sizes –Screen savers –Screen resolution NEXT SLIDE

21. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.21 Add or Remove Programs Installation wizardInstallation wizard Uninstall wizard:Uninstall wizard: –Do not delete programs Installation wizardInstallation wizard Uninstall wizard:Uninstall wizard: –Do not delete programs NEXT SLIDE

22. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.22 File Compression Programs Reduce the size of a file:Reduce the size of a file: –Removes redundancies Reduce the size of a file:Reduce the size of a file: –Removes redundancies NEXT SLIDE

23. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.23 System Maintenance Utilities Disk cleanupDisk cleanup Disk defragmenterDisk defragmenter ScanDisk:ScanDisk: –Error checker Task managerTask manager Disk cleanupDisk cleanup Disk defragmenterDisk defragmenter ScanDisk:ScanDisk: –Error checker Task managerTask manager NEXT SLIDE

24. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.24 System Restore and Backup System Restore:System Restore: –Restores the system settings back to a specific date Backup:Backup: –Creates a copy of the hard drive to another storage device System Restore:System Restore: –Restores the system settings back to a specific date Backup:Backup: –Creates a copy of the hard drive to another storage device NEXT SLIDE

25. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.25 Accessibility Utilities Utility manager:Utility manager: –Magnify screen image –Screen contents narration –On-screen keyboard Utility manager:Utility manager: –Magnify screen image –Screen contents narration –On-screen keyboard NEXT SLIDE

26. Technology In Action Chapter 5 © 2006 Prentice-Hall, Inc.26 Chapter 5 Summary Questions What utility programs are included in system software and what do they do?What utility programs are included in system software and what do they do? LAST SLIDE