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Introduction to Computers

Introduction to Computers. Parts. Monitor. CRT Cathode Ray Tube Flat Panel Dual Screen. Graphics Array. These are drivers for hardware. Sometimes old software has to have old drivers. CGA 16 320 x 200 EGA 64 480 x 320

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Introduction to Computers

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  1. Introduction to Computers

  2. Parts

  3. Monitor • CRT Cathode Ray Tube • Flat Panel • Dual Screen

  4. Graphics Array • These are drivers for hardware. Sometimes old software has to have old drivers. • CGA 16 320 x 200 • EGA 64 480 x 320 • VGA 256 640 x 480(early 90s)Show full video, but frames “jumped”. • S-VGA Millions 800 x 600 Animation as smooth as a TV • XGA Millions

  5. MonitorSize • 9” 14”, 15”, 17”, 21 The most common size today is 15”.Monochrome (one color) display

  6. Keyboards • Standard Keyboard – • Enhanced Keyboard- • Ergonomic Keyboard- • Virtual Keyboard- NEXT SLIDE

  7. Standard Keyboard Does not have the locator or the keypad sections NEXT SLIDE

  8. Enhanced Keyboard • Most common today Function or F-keys are located at the top Numeric keypad is located at the extreme rightLocator keys are located between the keypad and regular keyboard NEXT SLIDE

  9. Ergonomic Keyboard NEXT SLIDE

  10. Virtual Keyboard NEXT SLIDE

  11. Pointing Devices • Mouse • Trackball • Touchpad • Joystick • Digitizer and Pad • Touch Sensitive Screen

  12. Mouse

  13. Trackball

  14. Touchpad

  15. Joystick

  16. Digitizer and Pad

  17. Touch Sensitive Screen

  18. Data Storage • 3.5 Micro Floppy – 1.4 MB • 5.25 Floppy – 720 KB • Hard disk drive - TB • CD-ROM – 800 MB • DVD-ROM - 4.7 GB • USB Storage - GBs • Tape Drive - GBs • Jaz and Zip – 1 GB/100 MB

  19. 3.5 Micro Floppy

  20. 5.25 Floppy

  21. Hard disk drive Internal External

  22. CD-ROM

  23. DVD-ROM

  24. USB (Jump) Drives

  25. Tape Drives

  26. Jaz and Zip Drives

  27. Modem • Modulation/Demodulation • How modems work

  28. Printers • Dot Matrix Printer • Ink Jet Printer • Laser Printer • Plotter • Dye Sublimination

  29. Dot Matrix • Cost: $40 • Quality: Low • DPI: 300 dpi • Color: Possible, requires extra head • Maintenance Needs: Cheap

  30. Ink Jet • Cost: $40 • Quality: Medium • DPI: 600 • Color: Yes • Maintenance Needs: Expensive

  31. Laser • Cost: $500 • Quality: High • DPI: 1200 • Color: Yes • Maintenance Needs: Low, 3 cents copy

  32. Plotter Used in drafting for mechanical and architectural needs

  33. Dye Sublimination • Student ID Cards • Mugs • License Plates • Ceramic Tile

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