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Chapter: Operating Systems - Process and Threads

System Programs

System programs provide a convenient environment for program development and execution.

SYSTEM PROGRAMS

 

ü System programs provide a convenient environment for program development and execution.

 

ü They can be divided into several categories:

 

1. File management: These programs create, delete, copy, rename, print, dump, list and generally manipulate files and directories.

 

2. Status information: The status such as date, time, amount of available memory or diskspace, number of users or similar status information.

 

3.     File modification: Several text editors may be available to create and modify the content of files stored on disk or tape.

4.     Programming-language support: Compilers, assemblers, and interpreters for common programming languages are often provided to the user with the operating system.

 

5. Program loading and execution: The system may provide absolute loaders, relocatable loaders, linkage editors, and overlay loaders.

 

6.  Communications: These programs provide the mechanism for creating virtual connections among processes, users, and different computer systems. (email, FTP, Remote log in)

 

 

7. Application programs: Programs that are useful to solve common problems, or to perform common operations.

 

Eg. Web browsers, database systems.

 


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