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Chapter 6

Chapter 6 Output Output Text Graphics Audio Video Output Device LCD Monitors Liquid Crystal Display Flat panel monitor 1/3 power usage of CRT Active Matrix TFT (Thin-film transistor) OLED (Organic LED) Passive Matrix LCD Quality Resolution Native resolution Response time

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Chapter 6

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  1. Chapter 6 Output

  2. Output • Text • Graphics • Audio • Video • Output Device

  3. LCD Monitors • Liquid Crystal Display • Flat panel monitor • 1/3 power usage of CRT • Active Matrix • TFT (Thin-film transistor) • OLED (Organic LED) • Passive Matrix

  4. LCD Quality • Resolution • Native resolution • Response time • Milliseconds (ms) • Dot pitch (Pixel pitch) • Contrast Ratio • Bit depth • Viewable angle

  5. Connecting a Monitor • Standard video port • S-video • Digital Video Interface (DVI) port

  6. Plasma • Plasma screen technology • Sandwiches a layer of gas between two plastic plates • Lightweight, compact, and more expensive than CRT monitors

  7. CRT Monitors • Cathode-ray tube • Phosphors • RGB • Electron Beam • Refresh rate • Viewable size • Energy Star • Electromagnetic Radiation (EMR)

  8. Printers • Hard Copy • Soft copy • Orientation • Portrait • Landscape • Wireless Printing • Bluetooth • Infrared

  9. Printers • Measuring Performance • Image Quality • dpi (Dots per inch) • Speed • ppm (Pages per minute) • cps (Characters per second)

  10. Ink jet printers • Nozzle-like print head that sprays ink onto paper to form characters and graphics • Most ink jet printers use CMYK color • Photo printers

  11. Laser printers • A laserprinter paints dots of light on a light-sensitive drum • Prints an entire page at a time • Higher quality than ink jet • More expensive to buy than ink jet • Less expensive to operate than ink jet

  12. Other types of non-impact printers • Thermal • Thermal wax-transfer paper • Dye-sublimation • Digital photo printer • Mobile printers • Label and Postage Printers • Postage printer • Internet postage • Plotters • styli • Row of charged wires • Large format printers

  13. Dot matrix printers • Produce characters and graphics by using a grid of fine wires • Introduced in 1970s • Low quality output • Used for “back-office” applications that demand low operating cost and dependability • Can print multipart carbon forms

  14. What is a dot matrix printer?

  15. Other impact printers • Line printers • Band printer • Shuttle-matrix printer

  16. Other Output Devices • Speaker • Voice output • Fax Modems, Fax Machines • Multifunction • Data Projectors • Joysticks

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