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Chapter 17





                            Disadvantages of spreadsheets




                                  Data must be recopied over and over again to maintain it in
                                   separate data files.

                                  Spreadsheets are not able to identify data input errors.

                                  Spreadsheets lack detailed sorting and querying abilities.


                                  There can be sharing violations among users wishing to view or
                                   change data at the same time.


                                  Spreadsheets are restricted to a finite number of records.

                                  Spreadsheets are open to cyber-attack through viruses, hackers
                                   and general system failure.



                  Illustrations and further practice



                  Now try TYU questions 1, 2, 3 and 4 from Chapter 18






































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