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Ch 6

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Ch 6 Ch 6 Presentation Transcript

  • Printers
    • What is a line printer ?
    p. 304 Fig. 6-18
      • High-speed impact printer that prints entire line at a time
      • Speed measured in lines per minute (lpm)
        • Band printer prints fully formed characters using a hammer mechanism
        • Shuttle-matrix printer is high-speed printer that works like dot-matrix printer
    Next
  • Printers
    • What is an ink-jet printer ?
    p. 305 Fig. 6-19
      • A type of nonimpact printer that sprays tiny drops of liquid ink onto paper
        • Nonimpact printer forms characters and graphics without striking paper
      • Prints in black-and-white or color on a variety of paper types
    Next
  • Printers
    • What is the resolution of a printer?
    p. 306 Fig. 6-20
      • Sharpness and clarity
      • Measured by number of dots per inch (dpi) printer can output
    Next
  • Printers
    • How does an ink-jet printer work?
    p. 307 Fig. 6-21 Step 1. A small resistor heats the ink, causing the ink to boil and form a vapor bubble. Step 2. The vapor bubble forces the ink through the nozzle. Step 3. Ink drops onto the paper. Step 4. As the vapor bubble collapses, fresh ink is drawn into the firing chamber. Next print cartridge print head nozzle firing chamber nozzle bubble resistor ink ink ink dot paper
  • Printers
    • What is a laser printer ?
    p. 309 Fig. 6-23
      • High-speed, high-quality nonimpact printer
      • Prints text and graphics in very high-quality resolution, ranging from 600 to 2,400 dpi
      • Typically costs more than ink-jet printer, but is much faster
    Next Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Laser Printers below Chapter 6
  • Printers
    • What is a label printer ?
    p. 311 Fig. 6-27
      • Small printer that prints on adhesive-type material
        • Postage printer has built-in digital scale and prints postage stamps
      • Most also print bar codes
    Next
  • Printers
    • What is a plotter ?
    p. 312 Fig. 6-28
      • Sophisticated printer used to produce high-quality drawings
      • Large-format printer creates photo-realistic-quality color prints
    Next
  • Printers
    • What is wireless printing ?
    p. 312 Fig. 6-29
      • Output transmitted to printer wirelessly via infrared light waves or radio waves
        • Bluetooth printing uses radio waves
        • Devices need to be within 30-foot range
    Next Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Wireless Printing below Chapter 6
  • Speakers and Headsets
    • What is an audio output device ?
    p. 313 Figs. 6-30–6-31
      • Computer component that produces music, speech, or other sounds
      • Speakers and headsets are common devices
    Next Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Speakers and Headsets below Chapter 6
  • Speakers and Headsets
    • What is voice output ?
    p. 314 Fig. 6-32
      • Computer talks to you through speakers on computer
      • Internet telephony allows you to have conversation over Web
    Next
  • Other Output Devices
    • What is a facsimile (fax) machine ?
    p. 315 Fig. 6-33
      • Device that transmits and receives documents over telephone lines
    Next
  • Other Output Devices
    • What is a fax modem ?
    p. 315 Fig. 6-34
      • Modem that allows you to send and receive electronic documents as faxes
    Next external fax modem internal fax card in system unit fax machine Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Fax Modems below Chapter 6
  • Other Output Devices
    • What is a multifunction peripheral ?
    p. 316 Fig. 6-35
      • Provides functionality of printer, scanner, copy machine, and fax machine
    Next Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Multifunction Peripherals below Chapter 6
  • Other Output Devices
    • What is a data projector ?
    p. 316 Fig. 6-36
      • Device that takes image from computer screen and projects it onto larger screen
    Next