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Chapter 5: Defining the Role of the Operating System

Chapter 5: Defining the Role of the Operating System. Computer Literacy. Introduction. _________ System Functions Capabilities and Limitations of an OS Common OS Problems and Their Solutions. Operating System Functions. Create and maintain user _________ Manage system __________

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Chapter 5: Defining the Role of the Operating System

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  1. Chapter 5:Defining the Role ofthe Operating System Computer Literacy

  2. Introduction • _________ System Functions • Capabilities and Limitations of an OS • Common OS Problems and Their Solutions

  3. Operating System Functions • Create and maintain user _________ • Manage system __________ • _________ and maintain files • Act as a _______ between applications and hardware • Provide ________

  4. Create the User Interface • On-screen ________ and objects that enable you to ________ with the computer

  5. Create the User Interface • On-screen prompts and objects that enable you to interact with the computer • The _________ to everything the computer offers

  6. Manage System Hardware • BIOS for core hardware • Software programs (device drivers) for other hardware • Software for additional hardware comes on driver discs or via downloads from the Web.

  7. Organize and Maintain Files • Files-Files go in folders on mass storage devices. • File types • File extensions (i.e. .doc, .jpg, .html) • Files go in folders on mass storage devices and what program to open to edit that file, like Word to open a .DOCX file • Unique icons • Folders

  8. Bridge the Hardware and Applications • Operating system enables applications to ____________ with hardware • “Program support”

  9. Capabilities and Limitations of an OS • ___-based • __________-based

  10. Character-based User Interface • Prompt: c:\> • Type commands: c:\>dir • Press [Enter] to make the commands go • You need to know the commands or names of executable (program) files for the command line to work properly.

  11. Graphical User Interface • Point and click on icons • Just like typing a command • To the computer, it’s the same thing!

  12. Major _________ Systems • Command-line • DOS • Linux • UNIX • GUI • Windows • Macintosh OS X • Linux • UNIX

  13. Microsoft _________ • Graphical interface • Command-line interface as well • Windows 9x • Windows NT • Windows 2000 • Windows XP • Windows Vista • Windows 7 • Microsoft released Windows 95 in 1995 to replace DOS and Windows 3.11; later released Windows 98, 98 SE, and Millennium Edition (Me). • In their “professional” line of operating systems, Microsoft released Windows NT, 2000, XP Home, XP Professional, Media Center, numerous Server versions. • Current offerings include Windows Vista and Windows 7.

  14. Apple __________ • Currently at OS X (ten, not ex) • Graphical interface • Command-line interface as well

  15. UNIX and _____ • Command-line interface • Graphical (overlay) interface

  16. ________ Operating Systems • Smartphones • PDAs • Portable video and music players • e-book readers

  17. OS Limitations • Software support • Programs work for only one OS • Most programs written for Windows • Hardware support • Most hardware today works for Windows and Linux • Macintosh somewhat proprietary • Some hardware can connect to Windows, Macs, and Linux computers, particularly those using more universal ports like USB and FireWire. LCD monitors and speakers of all sorts work on all three OSs as well. • Case sensitivity-Windows is case aware, but not case sensitive on anything but passwords. Linux and Macs are case sensitive.

  18. Common OS ____________ • _____________ • System runs slowly • System locks up • Blue screen of death • Computer starts in Safe mode

  19. Common OS Problems • ______ Instability • Drive _________ • Go to Computer, right-click the drive, select Properties • In Properties, select Tools tab then click Check Now

  20. Common OS Problems • Instability caused by ________________ • Computer runs slowly • Computer accesses hard drive frequently • Fix by defragmenting the disk, or “defrag”

  21. Common OS Problems

  22. Common OS Problems • Failure to ______ • Safe Mode • System Restore

  23. Common OS Problems • Access ________ • Check [Caps Lock] key • You may not have the proper permissions (standard vs. administrator account) • Try again, carefully

  24. Summary • Operating System Functions • Capabilities and Limitations of an OS • Common OS Problems and Their Solutions

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