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2.3 Output devices and their uses
2.3 Output devices and their uses
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ICT IGCSE Theory – Revision Presentation2.3 Output devices and their uses
• Identify output devices and their uses, e.g. CRT monitor, TFT/LCD monitor, IPS/LCD
monitor, LED monitor, touch screen (as an output device), multimedia projector, laser
printer, inkjet printer, dot matrix printer, wide format printer, 3D printer, speakers,
Chapter 2: Input and output devices
motors, buzzers, heaters, lights/lamps
• Describe the advantages and disadvantages of any of the above devices
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, ICT IGCSE Theory – Revision Presentation
2.3 Output devices and their uses
Cathode Ray Tube (CRT) Monitor
Use: As primary output display for computers.
Chapter 2: Input and output devices
Advantage: Cheaper than other monitors and can be used with light pens.
Resolution is also very good.
Disadvantage: Size is bigger – requires more desk space.
Could be a safety hazard if not correctly supported.
Liquid Crystal Display (LCD) Monitor
Use: Have taken over from CRT as primary output display for computers. Also
primary output for monitors.
Flat Screen
Advantage: Smaller and lighter so less desk space required.
Consumes less power and does not generate as much heat as CRT monitors.
Disadvantage: Resolution may not be as good as a CRT monitor.
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