Output devices

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Output devices

  1. 1. NEXTCONTENTSBACK
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  3. 3. NEXTCONTENTSBACKThe monitor is a TV-like device that thecomputer uses to display information invisual form, using text and graphics. Itis also called the VDU, short for VisualDisplay Unit.
  4. 4. NEXTCONTENTSBACKThe portion of the monitor that displaysthe information is called the screen.The picture on a monitor is made up ofthousands of tiny colour dots calledpixels.
  5. 5. NEXTCONTENTSBACK
  6. 6. NEXTCONTENTSBACKThe cathode ray tube (CRT) is avacuum tube containing an electrongun (a source of electrons or electronemitter) and a fluorescent screen usedto view images.
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  9. 9. NEXTCONTENTSBACKA liquid crystal display (LCD) is a flatpanel display, electronic visual display,or video display that uses the lightmodulating properties of liquid crystals(LCs). LCs do not emit light directly.
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  11. 11. NEXTCONTENTSBACKFor a permanent output, you can use aprinter. A printer is a device thattransfers data from a computer ontopaper.
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  13. 13. NEXTCONTENTSBACKThere are three main types of printerscommonly used with the PC are —
  14. 14. NEXTCONTENTSBACKLaser printers are used to print highquality professional printings like DTPworks, documents, etc. They can print incolor or black ink. They also can printmore pages per minute than most inkjetprinters and can print more pages percartridge.Toner Cartridge
  15. 15. NEXTCONTENTSBACKNEXTCONTENTSBACK
  16. 16. NEXTCONTENTSBACKInkjet printers are the most popularprinters for the home. They can print in fullcolor or in black and white, and canproduce high quality photographs whenused with special paper. They print byplacing small dots of ink on a page toreproduce text or graphics.
  17. 17. NEXTCONTENTSBACKNEXTCONTENTSBACK
  18. 18. NEXTCONTENTSBACKInkjet printers are the most popularprinters for the home. They can print in fullcolor or in black and white, and canproduce high quality photographs whenused with special paper. They print byplacing small dots of ink on a page toreproduce text or graphics.
  19. 19. NEXTCONTENTSBACKCMY K
  20. 20. NEXTCONTENTSBACKSpeakers are used to play sound thatyour computer generates. They allowyou to listen to music and hear soundeffects from your computer.
  21. 21. NEXTCONTENTSBACKYou can also use headphones so thatonly you can hear the computer’soutput.
  22. 22. NEXTCONTENTSBACKA Plotter is an output device, which isused to generate graphic outputs. It ismainly used to print maps, medicalreports, designs required by engineers,etc.
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