Operating system services

Operating system services

☆ An operating system provide services to the user and also to the program.
Some common services provided by the operating system.
1.Program execution.
2.I/O opration (periferal is known as I/O).
3.File system manipulation.
4.Communication.
5.Error detection.
6.Resource location.
7.Protection.

1.Program execution:- The purpose of computer system is to allow the uses to execute program in an efficient way. The o.s provide an environment to the user to run these programs efficiently.

2. I/O operation:- I/O means input or output. The o.s makes the user convenient to run program by providing I/O functions.

3.File system manipulation:- A file is a collection of information. A file system is organised into directries for easy to use.

4.Communication:- Multiple processes communicates with each other through communication lines in the network and operating system handles these correction connection.

5.Error detection:- To avoid hardware problems the o.s. monitor the file for detecting the errors is called error detecting.After detecting errors. It is known as error connection.

6.Resourse location:- When multiple job are running at a time. Then it is the responsibility of o.s to locate the required resources like cpu, main memory, tape drive, & secondary memory etc.

7.Protection:- Protection is a mechanism to control the access of programs the o.s is used to control of all the resources.