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            Information and Communication Technology Applications




                                 2.2 Summary
                   Notes
                                    •  Fifth generation computers are still under research and development.
                                    •  In 1617, John Napier, a Scottish mathematician invented a mechanical calculator called the
                                      ‘Napier’s bones’.
                                    •  In later years, Herman Hollerith invented a machine for doing counting for 1880 US census,
                                      which was called the Tabulating Machine.
                                    •  It was in 1964, when it was discovered that a number of transistors could be sealed up into a
                                      tiny package, called an Integrated Circuit (IC) or a Chip.

                                 2.3 Keywords


                                 ENIAC: It was the first electronic computer using vaccum tube.
                                 UNIVACI: It was the first computer to handle both numeric and textual information.
                                 Semiconductor: Semiconductor are used to make diodes, transistors and other basic “solid state”
                                 electronic components.


                                 2.4 Review Questions

                                  1.   What do you mean by earlier computing devices?
                                  2.   Write a note on history of computer.
                                  3.   Describe the feature of fourth generation computers.

                                 Answers: Self Assessment

                                  1.   3000 BC                 2. Charles Babbage            3. Blasic Pascal
                                  4.   1952


                                 2.5 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.



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