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Out put devices and their uses (Printers (Laser printers (Advantages …

- - - - Can be used with light pen to produce and modify drawings using CAD software.
      - Sometimes they are used where several people need to view the screen at the same time, like for example where several designers are viewing a prototype as they have a wide angle of viewing.
    - - They are bulky and take a a large amount of space on the desk.
      - They generate a lot of heat and can make rooms really hot in the summer.
      - Glare on the screen can be a problem.
      - They are much heavier and present a safety problem when being moved, due its heavy weight.
  - - - They are very light this i why it is used in laptops.
      - They are thin so they don´t take up much desk space.
      - They are cheaper to run as they use less power than CRT monitors.
      - They can be easily positioned to suit the user because they are light.
      - The radiation given off is much less than a CRT monitor
      - They do not get as hot as CRT monitors so energy is not being waste in summer using air conditioning to cool offices down.
      - They do not create glare and may be less likely to cause eye damage.
      - They are ideal where only one person needs to view the screen.
    - - They are very difficult to repair. Its better to buy another one rather than repairing it.
      - They have a narrow viewing angle so the image is not as clear as CRT. Less useful if many people is viewing the screen.
  - - - Wide viewing angle makes it easier for groups to watch.
      - They are much thinner than CRT monitors so they take less space.
      - Less glare compared to CRT monitors.
      - Much more energy efficient compared to a CRT monitor.
    - - Not as energy efficient efficient as an LED monitor.
      - Not as good as graduating shades of colour compared with a LED monitor.
      - Not as good used in dimly-lit rooms.
  - - - Thinner than CRT about the same thickness as LCD
      - Lighter than CRT monitors.
      - More energy saving than to LCD and CRT.
      - Better picture quality when watching sports or playing games.
    - - More expensive than LCD monitors.
      - If you sit off-centre the visibility is poor.
- - - - Very quiet very important for some offices.
      - Toner cartridge lasts longer than inkjet cartridge.
      - High printing speed.
      - Fewer problems than inkjet printers.
      - Inkjet pages can be wet but with laser printers they are no wet pages.
      - They are cheaper to run.
      - High quality printouts.
    - - More expensive to buy.
      - Colour lasers are very expensive to buy.
      - Power consumption is high.
      - Most laser printers are larger than inkjet printers.
  - - - Relatively small compared to laser printers.
      - They do not cause harm to the environment.
      - High quality printing. Ideal for printing photographs, brochures and illustrated text.
      - Quietness of operation
      - They are usually more cheaper than laser printers.
    - - High cost of ink cartridges.
      - Paper printouts might be wet because of the ink.
      - Cartridges do not last long.
  - - - Can be used to print multi-part stationery.
      - Can be used with continuous stationery.
      - Cheaper to run than inkjet printers.
    - - Very noisy.
      - Low quality printouts.
      - Unsuitable for printing graphic.
  - - - Many people can view what is being presented.
      - Can show video to a large audience who might be sitting away from the screen.
    - - Not good quality image when seen in computer screen.
      - The projector fans creates a loud noise.
      - Requires a dark room otherwise the image will appear dim.
      - Requires the user to run and control the equipment.
  - - - Can print paper larger than A4.
      - No need of having a service of professional print shops.
      - Printouts larger than A4.
    - - Expensive if it is only used occasionally.
      - Wide format printers are quite large.
  - - - Can convert designs into prototypes very quick compared to traditional manufacturing prototypes.
      - It is cheaper to use 3D printers than traditional methods of manufacture.
      - Much easier to produce as they can just be printed out from designs using design software on the computer.
    - - Using 3D printers is less skilled than the use of older techniques.
      - Dangerous items as weapons can be manufactured.
      - There is a limited number of material used in 3D printer which what can be manufactured.