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Chapter Profile
                      Hybrid Computer 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.  Heart beat

                     measuring machine used in hospital is the common example of

                     the hybrid computer.
                                                                                                  Hybrid Computer

                  Size, Speed, Processing Power and Cost
                  Computers differ in their size, processing power, speed and cost. On the basis of these factors,
                  computers can be categorised 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 are made to be used by single

                  user at a time. 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



                                                 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.

                          Laptop

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

                  Minicomputer

                  A  minicomputer is type  of  computer that is bigger, more expensive,
                  and more powerful than a microcomputer. It can contain one or more
                  microprocessors as its processing unit. A minicomputer has the capability
                  to serve a number of users simultaneously.
                  It is also known as small or midsize server computer. Some common
                  examples of minicomputers are PDP-11, PDP-8, and HP-3000.

                                                                                                       Minicomputer



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