Monday Lecture Chapter 6

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  • Monday Lecture Chapter 6

    1. 1. Technology in Action Chapter 6 Evaluating Your System: Understanding and Assessing Hardware
    2. 2. Chapter Six Objectives <ul><li>Buy or Upgrade </li></ul><ul><li>CPU function </li></ul><ul><li>Memory </li></ul><ul><li>Storage devices </li></ul><ul><li>Video </li></ul><ul><li>Sound </li></ul><ul><li>Ports </li></ul><ul><li>Reliability of system </li></ul>
    3. 3. To Buy or Upgrade? <ul><li>Consider : </li></ul><ul><li>Moore’s Law </li></ul><ul><ul><li>18 months </li></ul></ul><ul><ul><ul><li>Double the number of transistors </li></ul></ul></ul><ul><li>Other advances in hardware </li></ul><ul><ul><li>Storage </li></ul></ul><ul><ul><li>Memory </li></ul></ul><ul><ul><li>Peripherals </li></ul></ul>
    4. 4. What Is Your Ideal Computer? <ul><li>Your Computer Uses: </li></ul><ul><ul><li>Entertainment </li></ul></ul><ul><ul><li>Educational </li></ul></ul><ul><ul><li>Business </li></ul></ul>
    5. 5. Ideal Computer <ul><li>Some Possible Uses: </li></ul><ul><ul><li>Word processing </li></ul></ul><ul><ul><li>Digital photo work </li></ul></ul><ul><ul><li>E-mail </li></ul></ul><ul><ul><li>Spreadsheets </li></ul></ul><ul><ul><li>Home finance </li></ul></ul>Match Components to Your Needs: CPU RAM Storage Other
    6. 6. Training <ul><li>Plan on training </li></ul><ul><li>Sources </li></ul><ul><ul><li>Classes </li></ul></ul><ul><ul><li>Online newsgroups </li></ul></ul><ul><ul><li>Manufacturers and publishers </li></ul></ul><ul><ul><li>Built-in tutorials </li></ul></ul>
    7. 7. Assessing Your Hardware – The Subsystems <ul><li>CPU </li></ul><ul><li>RAM </li></ul><ul><li>Storage </li></ul><ul><li>Video </li></ul><ul><li>Audio </li></ul><ul><li>Ports </li></ul>
    8. 8. Central Processing Unit <ul><li>Two major parts </li></ul><ul><ul><li>Control unit </li></ul></ul><ul><ul><li>ALU (arithmetic logic unit) </li></ul></ul><ul><li>Machine cycle </li></ul><ul><ul><li>Clock speed </li></ul></ul>
    9. 9. CPU Usage <ul><li>Windows XP </li></ul><ul><li>Task Manager </li></ul>CPU usage CPU usage
    10. 10. Upgrading Your CPU <ul><li>Expense </li></ul><ul><li>Speed </li></ul><ul><li>Compatibility </li></ul><ul><li>Method </li></ul><ul><ul><li>Chip-for-chip </li></ul></ul><ul><ul><li>Piggybacking </li></ul></ul><ul><ul><li>Daughter board </li></ul></ul>Installing heatsink over CPU
    11. 11. Random Access Memory <ul><li>RAM </li></ul><ul><li>Temporary storage </li></ul><ul><li>Fast </li></ul><ul><li>Memory cards </li></ul><ul><li>Types of RAM </li></ul>memory
    12. 12. Random Access Memory <ul><li>Installed RAM </li></ul><ul><li>Task Manager </li></ul><ul><ul><li>Performance tab </li></ul></ul><ul><li>Kernel memory </li></ul><ul><li>RAM needs </li></ul>memory
    13. 13. System Performance and RAM <ul><li>Memory bound </li></ul><ul><li>Virtual memory </li></ul><ul><li>Page file </li></ul>page file usage memory
    14. 14. Adding RAM <ul><li>Limited </li></ul><ul><li>Easy to do </li></ul>memory
    15. 15. Additional RAM <ul><li>Considerations: </li></ul><ul><ul><li>Type </li></ul></ul><ul><ul><li>Amount </li></ul></ul><ul><ul><li>Maximum you need </li></ul></ul><ul><ul><li>Maximum allowable </li></ul></ul><ul><ul><li>Total slots </li></ul></ul><ul><ul><li>Total open slots </li></ul></ul>memory
    16. 16. Storage <ul><li>Hard disk drive </li></ul><ul><li>Floppy disk drive </li></ul><ul><li>Zip disk drive </li></ul><ul><li>CD drive </li></ul><ul><li>DVD drive </li></ul>storage
    17. 17. Hard Disk Drive <ul><li>Compared to other storage: </li></ul><ul><ul><li>Large, economical </li></ul></ul><ul><ul><li>Fast data access </li></ul></ul><ul><ul><li>Fast data transfer rate </li></ul></ul>storage
    18. 18. Hard Disk Drive <ul><li>Considerations: </li></ul><ul><ul><li>Current capacity </li></ul></ul><ul><ul><li>Needed capacity </li></ul></ul><ul><ul><li>Software storage examples </li></ul></ul><ul><ul><ul><li>Windows XP – 1.5 GB </li></ul></ul></ul><ul><ul><ul><li>Word – 265 MB </li></ul></ul></ul><ul><ul><ul><li>Internet Explorer – 75 MB </li></ul></ul></ul>storage
    19. 19. Portable Storage <ul><li>Floppy </li></ul><ul><li>CD </li></ul><ul><li>DVD </li></ul><ul><li>Flash memory </li></ul><ul><li>Zip </li></ul>
    20. 20. Capacities storage 16 MB to 1 GB Flash memory 9.4 GB DVD 700 MB CD 100 to 750 MB Zip disk 1.44 MB Floppy disk Capacity Storage Media
    21. 21. Floppy and Zip Disks <ul><li>Portable </li></ul><ul><li>Magnetized particles of iron oxide </li></ul><ul><li>Organized by tracks and sectors </li></ul>
    22. 22. CDs and DVDs <ul><li>Pits burned into disk </li></ul><ul><li>Pits and non-pits translated to ones (1) and zeroes (0) </li></ul>
    23. 23. CDs and DVDs <ul><li>Types and needs </li></ul><ul><ul><li>CD-R </li></ul></ul><ul><ul><li>CD-RW </li></ul></ul><ul><ul><li>DVD-ROM </li></ul></ul><ul><ul><li>DVD-R </li></ul></ul><ul><ul><li>CD-ROM </li></ul></ul><ul><ul><li>DVD-RW </li></ul></ul>storage
    24. 24. Possible Storage Upgrades <ul><li>Hard drive </li></ul><ul><ul><li>Internal </li></ul></ul><ul><ul><li>External </li></ul></ul><ul><li>CD, DVD </li></ul><ul><li>Zip drive </li></ul><ul><li>Flash card </li></ul>storage
    25. 25. Video Subsystem <ul><li>Video card (video adapter) </li></ul><ul><ul><li>VRAM </li></ul></ul><ul><ul><li>Screen refresh rates </li></ul></ul><ul><li>Monitor </li></ul><ul><ul><li>CRT vs. LCD </li></ul></ul><ul><ul><li>Size </li></ul></ul>
    26. 26. Screen Resolution – Tradeoffs Comparison of two screen resolutions 800 x 600 pixels 1024 x 768 pixels
    27. 27. Screen Resolution – Changing
    28. 28. Audio Subsystem <ul><li>Speakers: </li></ul><ul><ul><li>Amplified </li></ul></ul><ul><ul><li>Not amplified </li></ul></ul><ul><ul><li>Subwoofer </li></ul></ul>
    29. 29. Audio Subsystem <ul><li>Sound card: </li></ul><ul><ul><li>Expansion card </li></ul></ul><ul><ul><li>3D sound card </li></ul></ul><ul><ul><li>Surround sound </li></ul></ul><ul><ul><ul><li>Dolby Digital 5.1 </li></ul></ul></ul><ul><ul><li>Card identification </li></ul></ul><ul><ul><li>Input and output jacks </li></ul></ul>
    30. 30. Port Review <ul><li>Types: </li></ul><ul><ul><li>Serial </li></ul></ul><ul><ul><li>Parallel </li></ul></ul><ul><ul><li>USB 1.2 and 2.0 </li></ul></ul><ul><ul><li>FireWire </li></ul></ul><ul><ul><li>Ethernet </li></ul></ul>
    31. 31. Evaluating System Reliability <ul><li>First, routine file maintenance: </li></ul><ul><ul><li>Disk defragmentation </li></ul></ul><ul><ul><li>Edit startup folder </li></ul></ul><ul><ul><li>Remove temporary Internet files </li></ul></ul>
    32. 32. Disk Defragmentation
    33. 33. System Crash <ul><li>Double-check hardware and software installations </li></ul><ul><li>With error code, check Microsoft Knowledge Base </li></ul><ul><li>Ensure enough RAM </li></ul><ul><li>Software updates </li></ul>
    34. 34. After Evaluation <ul><li>Buy or Upgrade? </li></ul><ul><li>CPU </li></ul><ul><li>Memory </li></ul><ul><li>Storage </li></ul><ul><li>Video </li></ul><ul><li>Sound </li></ul><ul><li>Ports </li></ul><ul><li>System reliability </li></ul>
    35. 35. Evaluating Your System Topic Summary <ul><li>Upgrade or buy new </li></ul><ul><li>CPU function and evaluation </li></ul><ul><li>Memory </li></ul><ul><li>Storage devices </li></ul><ul><li>Video output </li></ul><ul><li>Sound quality </li></ul>

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