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    OUTPUT DEVICES

                      The output devices are used to display the information and result of computation
                      to the user. Some of the output devices are:

                      Monitor

                      The monitor is one of the most familiar output device. It is called
                      the Visual Display Unit (VDU). The images that you see on the

                      monitor are made up of tiny dots called pixels. The clarity of
                      the images depends on the number of dots/pixels on the screen
                                                                                                             Monitor
                      per inch.

                      Printer

                      A printer  is an  output  device

                      that  allows you to print  the
                      work done on the computer on

                      a sheet of paper.  The printed             Dot matrix printer      Inkjet printer     Laser printer
                      output is  called a  hard copy.

                      The most commonly used printers are: Dot matrix printers, Inkjet Printers and
                      Laser Printers.

                          Dot matrix printers work like typewriters. The printer head strikes the paper and

                         ink ribbon to print a character.

                          The Inkjet printer prints  line-by-line by spraying ink on a sheet of paper.
                          The Laser printer uses a laser beam to print on the paper.

                      Plotters

                      Plotters are just like printers but are much bigger in size. There are mainly two
                      types of plotters: Drum Plotter and Flatbed Plotter.

                                            Flatbed Plotter                         Drum Plotter

                     10     Premium Edition-IV

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