Functions of operating system
5. protection and security :
· another important functions of an operating system is to protect itself from the user process and to protect different users processes from one another in a syatem.
· In a multi programming environment, where several users process reside in main memory at the same time, the may interface with OS or with each other.
· Thus, protection mechanism controls the access of users, programs and processes used by various applications.
· A total approach to computer security involves both external and internal security.
6. Networking:
· Networking is used for exchanging information among different computer that are distributed across various location.
· Distributed system consist of multiple processors and each processor has its own memory and clock
· This results in computer speedup, increased functionality, increased data availability and better reliability.
· Thus, a distributed system enables us to share the various resources of the network.
7. Command interpretation:
· The command interpreter is the basic interface between the computer and the user.
· There are to different user interface supported by operating system:
1. Command line interface
2. Graphical user interface
· Command line interface . it is the textual user interface on which user gives instruction to computer by typing the command.
· Graphical user interface . GUI provide the user a screen full of graphical icons or menus and allows the user to make a rapid selection from the displayed icons or menus to give instruction to computer.
· The various command supported by command interpretations module are known as system calls.
Can u create a blog post related to c++ or java
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