© 2003 Prentice Hall, Inc.B-1 Appendix B Information Systems Software Information Systems Today Leonard Jessup & Joseph Valacich.

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Presentation transcript:

© 2003 Prentice Hall, Inc.B-1 Appendix B Information Systems Software Information Systems Today Leonard Jessup & Joseph Valacich

© 2003 Prentice Hall, Inc.B-2 Appendix B Objectives Understand system software functions Understand system software functions Understand various types of application software Understand various types of application software Understand various programming languages Understand various programming languages Understand application development environments Understand application development environments

© 2003 Prentice Hall, Inc.B-3 Key IS Software Components Systems Software / Operating System Systems Software / Operating System  Common systems software functions  Interfaces: command vs. GUI  Popular operating systems  Utilities

© 2003 Prentice Hall, Inc.B-4

© 2003 Prentice Hall, Inc.B-5 Key IS Software Components Systems Software / Operating System Systems Software / Operating System  Common operating systems:  MVS/ESA  Unix  MS-DOS  Windows  OS/2  MacOS  Linux

© 2003 Prentice Hall, Inc.B-6 Key IS Software Components Application Software Application Software  Customized application software  Off-the-shelf application software  Examples  Business systems  Personal productivity

© 2003 Prentice Hall, Inc.B-7 Programming Languages and Development Environments Compilers and Interpreters Compilers and Interpreters Programming languages Programming languages  Generations Object-oriented languages Object-oriented languages  Objects  Encapsulation  Inheritance Visual languages Visual languages

© 2003 Prentice Hall, Inc.B-8 Programming Languages and Development Environments Web development languages Web development languages  HTML  XML  Java

© 2003 Prentice Hall, Inc.B-9 Programming Languages and Development Environments Automated Development Environments Automated Development Environments  CASE  Computer-Aided Software Engineering

© 2003 Prentice Hall, Inc.B-10 Popular Programming Languages LanguageApplication BASIC General purpose C / C++ General purpose COBOLBusiness FORTRAN Math / Science Pascal Teaching structured programming HTML Web development Java LISP Artificial Intelligence