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Software Hierarchy

Software

1. System Software 
· Operating System 
· System Support    
· System Development

2. Application Software
· General Purpose   
· Application Specific


 Relation between System Software and Application Software


To understand the relation between the system software and the application software, consider the figure shown on the screen. In this figure:
 Each circle represents an interface point. The inner core is the hardware and the outer core is the user.
 In order to work with the system, the user has to use the application software.
 The application software in turn interacts with the operation system, which is a part of the system software.
 The system software provides a direct interaction with the hardware.


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