FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -c) Physical System: When the logical models are developed to actually deliver the desired results, it is referred to as a physical system model. The physical system model can be tested and implemented. It consists of programmess, data files and documentation.

Detailed explanation-2: -A software system consists of several separate computer programs and associated configuration files, documentation, etc., that operate together. The concept is used in the study of large and complex software, because it focuses on the major components of software and their interactions.

Detailed explanation-3: -System documentation serves as the technical specifications for the IS and how the objectives of the IS are accomplished. Users, managers and IS owners need never reference system documentation. System documentation provides the basis for understanding the technical aspects of the IS when modifications are made.

Detailed explanation-4: -Most of the system documentation is prepared during the system analysis and system design phases. During systems implementation, an analyst must review system documentation to verify that it is complete, accurate, and up-to-date, and including any changes made during the implementation process.

Detailed explanation-5: -Systems have been classified in different ways. Common classifications are: (1) physical or abstract, (2) open or closed, and (3) “man – made” information systems. Physical systems are tangible entities that may be static or dynamic in operation.