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IT 10103

IT 10103. Introduction to Information Technology CHAPTER 06 - OUTPUT. Output. What is Output? Any data processed into useful form. Output. There are 4 types of output: Text Graphics Audio Video. Output. Display Devices

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IT 10103

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  1. IT 10103 Introduction to Information Technology CHAPTER 06 - OUTPUT

  2. Output What is Output? Any data processed into useful form.

  3. Output There are 4 types of output: Text Graphics Audio Video

  4. Output Display Devices Output device that visually conveys text, graphics, and video information.

  5. Output Monitors A plastic or metal case that houses a display device. There are two types for PC’s CRT Flat Panel

  6. Output CRT Cathode Ray Tube (CRT) Like a television in technology, but capable of displaying higher resolutions than a standard TV.

  7. Output 17” 21” CRT Monitors 19” 22”

  8. Output CRT Tiny dots of phosphor coat the front screen and have the colors of Red, Green or Blue (RGB) with all three colors making up one pixel

  9. Output CRT Sizes 15”, 17”, 19”, 21”, 22” Measured Diagonally Viewable Size is the actual viewing area you will have to work with, and is usually less than the total size Example = 21” Size w/20” Viewable

  10. Output Quality of a CRT Resolution Sharpness and Clearness of the Image Stated in pixels

  11. Output Quality of a CRT Some Common Resolutions 640x480 800x600 1024x768 1280x1024 1600x1200

  12. Output Quality of a CRT The higher the resolution the sharper and clearer the image, but the smaller the items displayed

  13. Output Quality of a CRT Dot Pitch (pixel pitch) The diagonal distance between like-colored pixels measured in millimeters (mm) Smaller distance = sharper image

  14. Output Quality of a CRT Some Common Dot Pitch Measurements .28mm .26mm .24mm .22mm .21mm

  15. Output Quality of a CRT Refresh Rate The speed that a monitor redraws the images on the screen The number of times per second the screen is redrawn is measured in Hz (hertz)

  16. Output Quality of a CRT Some Common Refresh Rates 60 Hz 72 Hz 75 Hz 80 Hz 90 Hz 100 Hz Interlaced or Non-Interlaced?

  17. Output Quality of a CRT Color Depth The number of colors that can be displayed on the screen. Described as Bit Depth representing the number of bits needed

  18. Output Color Depth for Monitors & Video Cards

  19. Output Monitors & Video Cards Must be used together to produce the screen image

  20. Output Monitors & Video Cards

  21. Output Video Cards Two common types of connections are VGA (Video Graphics Array) and DVI (Digital Visual Interface)

  22. Output Video Card Chipset Makers ATI NVIDIA S3 INTEL MATROX SiS

  23. Output Video Cards require memory to function in conjunction with the Graphics Processor Unit (GPU), the brains of the video card

  24. Output Video Card & Monitor Requires a software driver to interface between the Operating System and the video hardware system

  25. Output Flat-Panel Displays Does not use CRT technology and is typically flatter and smaller in depth than CRTs

  26. Output Flat-Panel Displays – LCD Liquid Crystal Display Liquid crystals are almost transparent substances, exhibiting the properties of both solid and liquid matter. Light passing through liquid crystals follows the alignment of the molecules that make them up and generates light we can see on the screen

  27. Output Flat-Panel Displays – LCD Some Common Screen Sizes 15” 17” 18” 19” 20” 21” 22” 23” 24” The size shown is the viewable size also there is no differences like with CRTs

  28. Output Flat-Panel Displays – LCD Active-Matrix (TFT) Passive-Matrix (HPA) TFT’s have higher resolutions, color depth, and brightness. They provide the best image quality. Avoid Passive-Matrix whenever possible

  29. Output Flat-Panel Displays – LCD Usually are limited in the number of resolutions possible Many LCD’s only allow 2-3 possible resolution settings

  30. Output Flat-Panel Displays – LCD One important feature to recognize in LCD’s is called Response Time measured in Milliseconds (ms) The lower the number the faster the LCD can refresh the screen and the better and more solid the image will look 25ms is minimum but 16ms or less is best

  31. Output Flat-Panel Displays – Gas Plasma Utilizes Gas Plasma instead of Liquid Crystals. Typically have larger sized screens and higher quality images, but cost much more than LCD’s

  32. Output Flat-Panel Displays – Gas Plasma Prone to Burn-In and Fading over time

  33. Output HDTV - High-Definition Television Sony Wega 42" XBR Plasma TV with built-in HDTV tuner$ 3,500

  34. Output HDTV Is high resolution digital television The formats used in HDTV are: 720p - 1280x720 pixels progressive 1080i - 1920x1080 pixels interlaced 1080p - 1920x1080 pixels progressive

  35. Output HDTV – How is it different from regular TV

  36. Output Digital TV has: Wider images Much more detailed pictures 5.1 channel CD-quality Dolby Digital (AC-3) surround sound The ability to send data directly to a screen or to a PC as a download (The actual HDTV transmission is based on a 19.3-Mbps digital data stream.)

  37. Output Printers Produces text and graphics on paper Questions to Ask about Printers See Figure 6-12

  38. Output Printer – Impact Dot Matrix & Line Printers Forms characters and graphics by striking the paper via a ribbon.

  39. Output Printer – Impact Dot Matrix & Line Printers $ 281.00 $ 5,500.00

  40. Output Printer – Non-Impact Forms characters or graphics without striking the paper

  41. Output Printer – Non-Impact – Ink-Jet Uses Liquid Ink Prints in Black & White and Color

  42. Output Printer – Non-Impact - Inkjet The higher the dpi the higher the quality of the printout but the slower the printing speed Higher quality prints require coated or glossy inkjet paper Images with at least 150dpi are sufficient to print highest quality on any inkjet printer today

  43. Output Printer – Non-Impact - Inkjet Biggest problem with inkjet printers is buying ink cartridges! However, depending on the brand of printer you can get secondary market cartridges for much less

  44. Output Printer – Non-Impact - Inkjet Example Secondary Cartridges from www.megatoners.com Epson C84 Inkjet Printer Black Cartridge = $ 2.50 each Color Cartridge = $ 2.50 each Canon PIXMA iP3000 Black Cartridge = $ 1.20 each Color Cartridge = $ 1.20 each

  45. Output Printer – Non-Impact - Inkjet How They Work Thermo Technology – Heat HP, Lexmark, & Canon Piezo Technology – Electric Epson

  46. Output Printing and Scanning Help http://graphicssoft.about.com/od/aboutgraphics/l/blscanning3.htm

  47. Output Printer – Non-Impact – Laser Uses Dry Toner Prints in Black & White and Color HP LaserJet 2300 Laser Printer, 25 PPM, 1200 x 1200 DPI, B&W HP LaserJet 3700 Laser Printer, 16 ppm, 600 x 600 DPI, Color/ B&W, 64 MB

  48. Output Printer – Non-Impact – Laser vs Inkjet Total cost of ownership (TCO) is less for laser printers. Cost per page average is $ .01 - $ .03 – Laser Cost per page average is $ .03 - $ .20 – Inkjet

  49. Output Other Non-Impact Printers Thermal Mobil Label Postage Plotters Large-Format

  50. Output $ 5.00 Speakers & Headsets $ 50.00 $ 149.00

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