ICT-INFO 1- Topic 6- Selection and use of output methods, media and devices

Topic 6

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  • Created by: Kathryn
  • Created on: 30-10-11 16:54

Topic 6

Selection and use of output methods, media and devices

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Output methods

  • Hard copy (printed copy)
  • Screen display
  • Output in digital form to be used as input to another system
  • Sound
  • Output to portable devices
  • Output as control signals
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Common output devices

  • Printers
  • Screens
  • Plotters
  • Speakers
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Printers

  • Essential
  • Used to produce hard copies
  • Ink-Jet
  • Laser
  • Dot matrix
  • Thermal
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Ink-Jet Printers

  • Popular with home users
  • Less popular with businesses
  • High cost ink 
  • Spary ink onto the paper
  • High quality printouts
  • Photographic quality print
  • Quiet
  • Cheap to buy
  • Ink smudges
  • Need special paper
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Laser Printers

  • Very popular with businesses
  • High speed
  • Photocopier technology
  • Cartridges last longer 
  • Very reliable
  • No wet pages 
  • No special paper needed
  • High cost for the printer
  • High cost to print colour
  • High power consumption
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Dot Matrix Printers

  • Common in businesses
  • Not often seen in homes
  • Hit little pins (9 or 24) against an inked ribbon to  mark out characters
  • Multi-part stationary 
  • Reliable
  • Can use different types of paper
  • Very noisy
  • Characters are not very clear
  • Unsuited for printing graphics
  • Limited colour printing
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Thermal Printers

  • Use heat to produce an impression on paper
  • Printing reciepts
  • Printing tickets 
  • Lottery tickets
  • Quite popular
  • Silent
  • High speed
  • High quality
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Multifunction Printers

  • Very popular
  • Printer (usually laser)
  • Scanner
  • Photocopier
  • Fax
  • Only takes up a small amount of space than having big photocopiers scanners
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Screens

  • Sometimes called Visual Display Units (VDA)
  • View processed information
  • Most screens are flat
  • Less space on desk
  • Lighter
  • Easy to clean
  • Liquid Crystal Display (LCD)
  • Doesn't produce much heat
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Plotters

  • Graphs,plans,maps and designs
  • Accurate and precise
  • Scale
  • Flat bed plotter for small drawings 
  • Drum plotter for large drawings
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Speakers

  • Very Important
  • Listen to voicemail
  • Listen to radio
  • Listen to music
  • Listen and watch video
  • Multimedia presentations
  • Make and recieve phone calls over internet 
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Output Media

  • Material where information could be stored or conveyed
  • Hard Copy
  • Magnetic media (flash drives etc)
  • Optical media (CD-ROM etc)
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