1. Instructions (computer programs) that when executed provide desired functions and performance.
  2. Data structures  that enables the programs to adequately mainupulate information.
  3.  Documents that describe the operation and use of the programs.
                                                                                                                                                                                                       There are three main things-
    PROGRAMS- is a combination of source code and object code.
    DOCUMENTATION-It consist of different types of manuals
    a) Analysis
    b) design
    c) implementation
    d) testing
    OPERATING PROCEDURES-It consist of instructions to setup.
    a) User manual
    b) operational manual

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