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                  Minicomputers

                  These computers  are small  general-purpose computers.
                  They can serve a number of users simultaneously. It has

                  more power than a Microcomputer.
                  They are used for scientific and business applications.








                                                                                                  Minicomputers
                                                                      Mainframe Computers


                                                                      These computers are very large, fast and
                                                                      powerful  computers.  Some mainframe
                                                                      computers are so big that they require
                                                                      as much large space as that of a room.

                                                                      They  are  used in big  organisations
                                                                      where a large amount of data is used,

                                                                      such as banks.
                               Mainframe Computers




                  Supercomputers

                  These are the largest and fastest
                  of all types of computers. They can

                  process a very large amount of data
                  quickly.

                  They are used in very big organisations
                  and  government  departments  to  do
                  tasks such as weather forecasting and
                  rocket launching.                                                    Supercomputers




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