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Hybrid: refers to a computer that provides the functionality of
                        both an analog  and a digital computers while processing and
                        displaying data. It uses the speed of analog computer and accuracy
                        from digital computer. This type of computers is generally used
                        in  scientific  research  and  specialized  applications.  Heart  beat
                        measuring machine used in hospital is the common example of
                                                                                                 An Hybrid Computer
                        the hybrid computer.

                  Size, Speed, Processing Power and Cost

                  Computers are  differ  in their  size, processing power,  speed and  cost. On the basis of these
                  factors, computers can be categorized as follows:
                  Microcomputer


                  A microcomputer is a type of computer that has one microprocessor as its processing unit. It is
                  a small and less expensive digital computer. This type of computers is made to be used by single
                  user  at  a  time.  Microcomputer  is also called  as  Personal  Computer  (PC).  Some examples of
                  microcomputer are:

                          Desktop: It is a personal computer developed for regular use

                        and generally placed at a single place on a desk or table. All its
                        components such as keyboard, mouse and storage devices are
                        connected through wire or wireless. Due to its size and power
                        requirements, we cannot carry this type of computers. Desktop
                        computers are generally used in schools, colleges, offices, etc.
                                                                                                      Desktop

                                                        Laptop: It is a portable and small digital personal computer
                                                      that is suitable for use while travelling. We can use a laptop
                                                      computer by keeping it on our lap. A laptop computer has

                                                      a built-in mouse, monitor and a keyboard.  It also has a
                                                      rechargeable battery. After fully charging the battery, we can
                                                      use the laptop computer without power for 4 hours or more.

                                                      Laptop computers are mostly used by marketing executives
                             Laptop
                                                      who travels frequently far from his offices.

                          Tablet: It is a portable digital computer smaller than the laptop
                        computer. It has a touchscreen as its primary input device instead

                        of mouse. Similar to a laptop, the tablet computer also has a
                        rechargeable  battery.  The tablet computer generally provides
                        less  features than a laptop computer.  Tablet computers are
                        commonly used by professionals in various organizations.                         Tablet





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