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Chapter 2: Going with the Data Flow

Chapter 2: Going with the Data Flow. Computer Literacy. Introduction. Computer’s Boot Process Interacting with the Computer Closing Programs and Shutting Down. Phase One: Start Me Up!. Power-on CPU ROM-BIOS Hardware Test (POST) Load OS. Data Flow. Interplay among CPU, RAM, Storage

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Chapter 2: Going with the Data Flow

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  1. Chapter 2:Going with the Data Flow Computer Literacy

  2. Introduction • Computer’s Boot Process • Interacting with the Computer • Closing Programs and Shutting Down

  3. Phase One: Start Me Up! • Power-on • CPU • ROM-BIOS • Hardware Test (POST) • Load OS

  4. Data Flow • Interplay among CPU, RAM, Storage • Load from storage • RAM as CPU’s short-term memory

  5. Operating System Load • CPU loads OS files from hard drive to RAM • Creates a user interface

  6. Phase Two: the Dance • Input • Process • Output Rinse and repeat

  7. Input Devices • Keyboard • Mouse • Trackball • Touchpad • Microphone • Game Devices

  8. Installing Input Devices • Physical connections • DIN ports (keyboard and mouse) • USB • FireWire • Software support • Plug and play • Drivers

  9. Internal Processing • Opening programs • Start menu • Double-click • Transfers files from hard drive to RAM

  10. Internal Processing • CPU to video card • Video card to monitor Repeat

  11. Output Devices • Feedback devices • Monitor • Projectors • Speakers • Voice synthesizers • Hardcopy • Printer

  12. Output Devices • Storage Devices • RAM is temporary storage • Need some other device for long-term storage

  13. Magnetic Storage Devices • Magnetic • Hard drive • Floppy disk

  14. Optical Storage Devices • CD-media • CD-ROM • CD-R • CD-RW • DVD-media • DVD-ROM • DVD-R • DVD±RW • Blu-ray Discs • BD-R • BD-RE

  15. Flash Memory • Solid state (stores without electricity) • Rewritable • Multiple formats • USB thumb drives • Compact Flash (CF) • Secure Digital (SD)

  16. Connecting Output Devices • Physical connections (color-coded) • Install support software (drivers)

  17. Closing Programs and Shutting Down • Do it the right way: • Save and close documents • Close applications • Log out • Power down • Avoid corrupting files • Maintain security • Save the planet

  18. Summary • Computer’s Boot Process • Interacting with the Computer • Closing Programs and Shutting Down

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