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            e\L-lovely-eng\comm4-1.pmd  IInd 16-9-11  IIIrd  27-12-11 IVth 4-1-12


                                                                                    Unit 4: Classification of Computers




             3.   Analog computer are mainly used for ...... .
                                                                                                     Notes
             4.   Personal computer may be connected to a ...... .
            4.2 Summary

              •  Super computers are the type of computer which works at a faster rate and they are referred
                 to as the fast computers.
              •  The term “super computer” was coined in 1929 by the New York World.
              •  Mainframes are designed to handle very high volume input and output (I/O) and emphasize
                 throughput computing.
              •  Personal computers may be connected to a local area network (LAN), either by a cable or a
                 wireless connection.

            4.3 Keywords

            Digital Computer: Digital computer are mainly general-purpose computers that represent and store
            data in discrete quantities or numbers.
            Hybrid Computers: Hybrid computer incorporate the technology of both analog and digital computer.
            Mainframe Computer: Mainframe were established in the 1960s, but those characteristic continue
            to expand and evolve to the present day.

            4.4 Review Questions

             1.   What are the uses of super computer?
             2.   Write the role of mainframe computer.
             3.   Write a note on personal computer.
             4.   What do you mean by netbook computer?


            Answers: Self Assessment
             1.   1929              2. 1960s            3. scientific and engineering application
             4.   local area network

            4.5 Further Readings




                         1. Devarajan, (G). Information technology in libraries. Delhi: Ess Ess, 1990.
                         2. Ravichandra Rao, (IK): Library automation. New Delhi: Wiley Eastern.
                         3. Rowley, (J.) The electronic library. 4  ed. London: LA, 1998.
                                                       th
                         4. Satyanarayana, (NR): A manual of computerisation in libraries.



                            http://www.buzzle.com/articles/different-types-of-computers.html

                           http://computer-concepts-tutorial.blogspot.com
                           http://computeranditssolutions.blogspot.com





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