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Chapter 6 Output

Chapter 6 Output. What Is output ?. Data that has been processed into a useful form, called information. What is Output?. text. graphics. video. Next. audio. p. 6.2 Fig. 6-1. What is an output device ?. Any hardware component that can convey information to a user.

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Chapter 6 Output

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  1. Chapter 6Output

  2. What Is output? Data that has been processed into a useful form, called information What is Output? text graphics video Next audio p. 6.2 Fig. 6-1

  3. What is an output device? Any hardware component that can convey information to a user What Are Output Devices? monitor speakers printer Next Click to view video p. 6.4

  4. What is a display device? Television-like Information on a display device sometimes is called soft copy Display Devices Next p. 6.4

  5. Large sealed, glass screen Screen coated with tiny dots of phosphor material Pixel, or picture element, is single point in electronic image Three dots (red, blue, and green) combine to make up each pixel What is a CRT monitor? Display Devices cathode ray tube CRT monitor screen Next p. 6.5 Fig. 6-3

  6. What is a liquid crystal display (LCD) monitor? Type of flat-panel display Uses liquid crystals between two sheets of material to present information on screen Electric current passes through crystals, which creates images on the screen Display Devices Next p. 6.5 Fig. 6-4

  7. Where are some features of LCD screens? Lightweight and compact Consumes less than one-third of the power than does a CRT monitor Ideal for notebook and handheld computers Display Devices Next p. 6.6 Fig. 6-5

  8. What are the two technologies used for LCD monitors? Display Devices • Passive-matrix display • Color often not as bright • Images best viewed when working directly in front of display • Active-matrix display • Can display high-quality color viewable from all angles Next p. 6.8

  9. What is refresh rate? Speed at which monitor redraws images on the screen Display Devices Should be fast enough to maintain a constant, flicker-free image High-quality monitor will provide refresh rate of at least 75 hertz Image on the screen redraws itself 75 times per second Next p. 6.9

  10. What is a printer? Output device that produces text and graphics on paper Result is hard copy, or printout Two orientations Printers portrait orientation landscape orientation Next Click to view animation p. 6.12 Fig. 6-14

  11. What is an impact printer? Forms characters by striking a mechanism against ink ribbon that physically contacts paper Ideal for printing multipart forms Can withstand dusty environments, vibrations, and extreme temperatures Printers Next p. 6.14

  12. What is a dot-matrix printer? Impact printer that produces printed images when tiny wire pins on print head mechanism strike inked ribbon Most use continuous-form paper Printers continuous-form paper Next p. 6.14 Fig. 6-17

  13. What is a non-impact printer? Forms characters and graphics on piece of paper without actually striking paper Printers thermal printer ink-jet printer laser printer Next p. 6.15

  14. What is an ink-jet printer? Nonimpact printer forms characters and graphics by spraying tiny drops of liquid ink onto piece of paper Most popular type of color printer for home use Printers Next Click to view Web Link then click Ink-Jet Printers p. 6.15 Fig. 6-19

  15. What is the resolution of a printer? Sharpness and clarity of characters Measured by number of dots per inch (dpi)printer canoutput Printers 300 dpi 600 dpi 1,200 dpi Next p. 6.15 Fig. 6-20

  16. What is a laser printer? High-speed, high-quality nonimpact printer Prints text and graphics in very high-quality resolution, ranging from 600 to 1,200 dpi Typically costs more than ink-jet printer, but is much faster Printers Next Click to view Web Link then click Laser Printers p. 6.16 Fig. 6-17

  17. What is a plotter? Sophisticated printer used to produce high-quality drawings Large-format printer similar to plotter and is used to print quality color prints Printers plotter large-format printer Next p. 6.22

  18. What is an audio output device? Computer component that produces music, speech, and other sounds Speakers and headsets are common devices Speakers and Headsets speakers woofer Next p. 6.23 Fig. 6-29

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