Operating system functions

 

The operating system serves several functions:

·         Management Processor : Operating System Processor manages the distribution among programs using a programming algorithm.

·         Management Random Access Memory : Operating system manages the memory space allocated for each application and each user, if appropriate. When physical memory is insufficient, the O.S creates an area of memory on the hard drive, called “virtual memory.” Virtual memory permits you to run applications that require a capacity of memory beyond available RAM in the system. However, this memory is much slower.

·         Management of input / output : Operating system to unify and control access to material resources programs through the drivers (also known as administrators peripheral or input / output).

·         Execution Management applications : Operating system ensures that applications run smoothly by allocating the resources they need to function. This means that if an application does not respond properly may “succumb”.

·         Managing authorities : Operating system is responsible for security in connection with the execution of programs by guarantee you that resources are used only for programs and users with appropriate authorization.

·         File management : The O.S manages all the writing and reading in the file system and access permissions to files and user applications. File system that permits files to be recorded in a tree structure.

·         Information management : Operating system provides hundreds of indicators that can be used to diagnose the operation of the equipment.