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Computing Fundamentals

Computing Fundamentals. Unit 6- Operating Systems. Objectives. Identify the purpose of an OS Identify different operating systems Describe computer user interaction with multiple operating systems Identify system limitations Describe common problems related to operating systems. The OS.

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Computing Fundamentals

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  1. Computing Fundamentals Unit 6- Operating Systems

  2. Objectives • Identify the purpose of an OS • Identify different operating systems • Describe computer user interaction with multiple operating systems • Identify system limitations • Describe common problems related to operating systems

  3. The OS • System software • Allows user & hardware to communicate with application software & reverse • Manages files & resources • Drivers allow peripherals to communicate with OS • Every PC needs one

  4. Operating Systems • DOS • Old • Text based, single task only • Command Prompt • Windows • 3.0, 3.1, 95, 98, 2000, Me, XP, Vista, 7 • Mac OS • Linux, Unix, Handheld/Tablet OS, Embedded • Network OS (NOS) • Novell, Windows Server • Allows shared access, security

  5. DOS • Found in Command Prompt

  6. Windows- Through the Years

  7. Mac OS

  8. Linux • Similar to Windows/Mac • Free • Open to coding/ changes by the user

  9. UNIX • More for servers/programming of devices

  10. Network OS • Runs on a central server • Controls access • Manage network resources • Monitor network • Maintains security • Windows Server 2008, Novell Netware

  11. Handheld/Tablet OS • Blackberry, Palm, Android, Windows Mobile

  12. Embedded OS • OS used in appliances or special purposes • Small & serves single purpose • Car, ATM, router, mp3 player, digital picture frames

  13. Review • What are programs used by the OS to talk to hardware devices? • Driver • Which OS’s use a GUI and can multitask? • Windows, MAC • Which OS is open source? • Linux • T or F. A computer can not run application software without an OS. • True

  14. OS Problems • Incompatibility • Application software must be compatible with the OS it runs on • Office 2011:mac will only run on MAC’s, not Windows • Sharing Files • Some files can’t be read across OS’s • .txt can be; has no formatting (simple text editor) • .rtf can be; keeps formatting

  15. OS Problems • File corruption • OS files can get damaged & cause OS to not run properly or not at all • Virus, power failure, bad install • Disk crashes • Unexpected shut down • Reboot or reinstall/fix errors

  16. Boot Up Process • POST (verifies hardware) • ROM passes boot instructions to RAM • OS located on HD, loaded into RAM • C: Drive

  17. User Interfaces • How you interact with OS • Command Line Interface (CLI) • DOS • Graphical User Interface (GUI) • Icons to click

  18. Review • Which user interface must you type out commands instead of clicking icons? • CLI • Where is the OS stored? • Hard drive • Where does the OS get loaded onto when the computer boots? • RAM • Which OS is free and allows users/programmers to change coding to improve it? • Linux

  19. Review • Name a mobile OS. • iPhone, Android, Windows Mobile, others • Which type of user interface is Windows? • GUI • What happens first when you turn on your computer? • POST, check hardware • What part of the computer contains boot instructions? • ROM

  20. Computing Fundamentals Unit 6- Operating Systems

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