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  1. Chapter 6Output

  2. What is Output? Next What isoutput? • Data that has been processed into a useful form, • Output device is any hardware component that can convey information to user p. 300 - 301 Fig. 6-1

  3. Display Devices Next What is adisplay device? • Output device that visually conveys information • Information on display device sometimes called soft copy p. 302

  4. Display Devices Next What is an LCD monitor? • Uses liquid crystal display • Have a small footprint • Mobile devices that contain LCD displays include • Notebook computer, Tablet PC, PDA, and Smart Phone p. 302 - 303 Fig. 6-2

  5. Flat-Panel Displays Next What about using multiple LCD monitors? • Some users position two or more monitors side by side or stacked • Allows users to run multiple applications simultaneously • Cool setup p. 303 Fig. 6-3

  6. Flat-Panel Displays Tablet PC PDA notebookcomputer smart phone Next What are some mobile devices that have LCD screens? p. 303 Fig. 6-4

  7. Flat-Panel Displays Next What isresolution? • Number of horizontal and vertical pixels in a display device • Sharpness and clarity of image • Higher resolution makes image sharper, displays more text on screen, makes some elements smaller • Examples? p. 304 - 305 Fig. 6-5

  8. Flat-Panel Displays Next What is aplasma monitor? • Displays image by applying voltage to layer of gas • Larger screen size and higher display quality than LCD, but are more expensive p. 306 Fig. 6-7

  9. Flat-Panel Displays Next What isdigital television (DTV) andhigh-definition television (HDTV)? High resolution All broadcast stationstransmit digital signals Many programs can bebroadcast on a singledigital channel Uses digital signals to producecrisper, higher-quality outputon LCD and plasma televisions HDTV (high-definition television)is the most advanced formof digital TV Great for game playing, watching movies, and browsing the Internet p. 306

  10. CRT Monitors Next What is aCRT monitor? • Containscathode-ray tube (CRT) • Screen coated with tiny dots of phosphor material • Each dot consists of a red, blue, and green phosphor • Common sizes are 15, 17, 19, 21, and 22 inches • Viewable size is diagonal measurement of actual viewing area p. 307 Fig. 6-9

  11. CRT Monitors Next What is theENERGY STAR program? • Encourages manufacturers to create energy-efficient devices that require little power when not in use • Monitors and devices meeting guidelines display ENERGY STAR label p. 307

  12. CRT Monitors Next What determines the quality of a CRT monitor? • Screen resolution • Text created with a smaller dot pitch is easierto read • Refresh rate is speed at which monitor redrawsimages on screen p. 308

  13. Printers portrait landscape Next What is aprinter? • Output device that produces text and graphics on a physical medium • Result ishard copy, orprintout • Two orientations:portraitandlandscape p. 310 Fig. 6-11

  14. Printers wirelessprinters printercable cable dockingstation mediacard Next What are the various ways to print documents and pictures? various ways to print p. 311 Fig. 6-13

  15. Printers Next What is anon-impact printer? • Forms characters and graphics without striking paper • Ink-jet printersprays tiny drops of liquid ink onto paper • Prints in black-and-white or color on a variety of paper types p. 312 Fig. 6-14

  16. Printers 300 dpi 600 dpi 1200 dpi Next What is theresolutionof a printer? • Sharpness and clarity • Measured by number ofdots per inch (dpi)printercan output p. 313 Fig. 6-15

  17. Printers Next What is aphoto printer? • Color printer that produces photo-lab-quality pictures • Many photo printers have a built-in card slot p. 314 - 315 Fig. 6-17

  18. Printers Next What is alaser printer? • High-speed, high-quality non-impact printer • Prints text and graphics in very high-quality resolution, ranging from 1,200 to 2,400 dpi • Typically costs more than ink-jet printer, but is much faster p. 315 Fig. 6-18

  19. Printers Next What is amobile printer? • Small, lightweight, battery-powered printer that allows mobile user to print from notebook computer, Tablet PC, or PDA while traveling p. 317 Fig. 6-21

  20. Speakers and Headsets Next What is anaudio output device? • Computer component that produces music, speech, or other sounds • Speakers and headsets are common devices p. 320 - 321 Figs. 6-26 – 6-27

  21. Speakers and Headsets Next What isvoice output? • Computer talks to you through speakers on computer • Internet telephonyallows you to have conversationover Web p. 321 Fig. 6-28

  22. Other Output Devices internal fax card in system unit external fax modem fax machine Next What is afax modem? • Modem that allows you to send and receive electronic documents as faxes http://www.faxdigits.com/ p. 322 Fig. 6-30

  23. Other Output Devices Next What is amultifunction peripheral? • Provides functionality of printer, scanner, copy machine, and fax machine p. 323 Fig. 6-31

  24. Other Output Devices Next What is adata projector? • Device that takes image from computer screen and projects it onto larger screen p. 323 Fig. 6-32

  25. Output Devices for Physically Challenged Users Next What other output options are available for visually impaired users? • Change Window settings, such as increasing size or changing color of text to make words easier to read • Blind users can work with voice output • Braille printeroutputs information in Braille onto paper p. 326 Fig. 6-36