Powerpoint comp ed[1][1]56

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  • Powerpoint comp ed[1][1]56

    1. 1. Chapter 4<br />Hardware For Educators<br />Ashley Sabat<br />Teresa Woods<br />Jennifer Veras<br />
    2. 2. The system unit<br /><ul><li>Box like case made out of metal or plastic that houses the electronic components. </li></ul>Examples:<br />
    3. 3. CPR<br /><ul><li> Central Processing Unit- important chip in the motherboard
    4. 4. CPR- carries instructions that operate a computer. (Also referred as a processor)</li></li></ul><li>Hardware Components Used For:<br /><ul><li> Input
    5. 5. Processing
    6. 6. Output
    7. 7. Storage</li></li></ul><li>Control units<br />4 basic operations:<br /><ul><li> Fetch- guidelines from memory
    8. 8. Decoding- translate instructions into orders
    9. 9. Executing- carries out commands
    10. 10. Storing- writes outcome into memory</li></li></ul><li>2 Types Of Memory<br /><ul><li> RAM- Random Access Memory</li></ul>RAM is Volatile, data stored in RAM are erased when the power to the computer is turned off.<br /><ul><li> Volatile-lost when the computer turns off
    11. 11. ROM- Stores info that does not change. (Read Only Memory)
    12. 12. Nonvolatile- not lost </li></li></ul><li>Data Representation<br /><ul><li>A computer only understands digital “ON” and “OFF”.
    13. 13. These two states are represented by electronic circuits that represent by 1 or 0.
    14. 14. Using the Binary system equals 2 digits.
    15. 15. Bit- Binary Digit
    16. 16. Creates over 256 characters, provides combinations of 0’s and 1’s.
    17. 17. 8 bits= a byte</li></li></ul><li>Flash Memory:<br />Nonvolatile memory can be erased and rewritten on. <br />
    18. 18. Input<br /><ul><li> Any item entered into the memory of the computer.</li></ul>4 Types: <br /><ul><li> Data
    19. 19. Commands
    20. 20. Programs/Software
    21. 21. User Response</li></li></ul><li>Output Devices<br /><ul><li>Data that has been processed into useful form called information. </li></ul>4 types;<br /><ul><li> Text
    22. 22. Graphics
    23. 23. Audio
    24. 24. Video </li></li></ul><li>Display Devices<br /><ul><li> The core most monitors are made up of cathode ray tube. (CRT)
    25. 25. A pixel a single point electronic image.</li></li></ul><li>System Clock<br /><ul><li> System clock- reins the timing of all computer operations.
    26. 26. Clock speed- measured GHz
    27. 27. Giga- one billion
    28. 28. Hertz- cycle per second
    29. 29. 4 GHz-four billion, ticks in one second</li></li></ul><li>Optical Discs<br /><ul><li> CDs and DVDs
    30. 30. R-recordable
    31. 31. CD-RW
    32. 32. CD-R
    33. 33. CD-ROM
    34. 34. DVD</li></li></ul><li> Bibliography <br />- Shelly, Cashman, Gunter. “Integrating Technology and Digital Media in the Classroom.” Chpt 4. Hardware for Educators. 2009 Cengage Learning. INC; Pg 202-239 inc.<br />- Expert Village. “Computer Hardware Information : What Makes a Computer Work?” Online posting. Youtube, November 9th, 2008. Web. November, 30, 2010<br />

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