Operating system

OPERATING SYSTEM (O.S)

>DATA

Rough facts and figures are called DATA.

>INFORMATION

The meaningfull collection of data is known as INFORMATION.

>INSTRUCTION

The set of information is known as INSTRUCTION.

>SOFTWARE

The collection of instructions , which are collected for performing specific task is called SOFTWARE.

OPERATING SYSTEM

Similarly as given above↑ O.S is also a set of INSTRUCTION, made to perform a particular task.
It act as intermediate/link/medium between the computer hardware and the users.
#(wrote down)
#An effective Operating system should accomplish following functions:
1.Should act as a command interpreter by providing a user friendly environment.
2.Should faciliate communication with other users.
3.Facilate the directory and file creation along with security options.
4.Provide access to complier and o translate programs from H.L.L(high-level language) to L.L.L(low-level language).
The main functions of an OPERATING SYSTEM are:

1. It provides user freindly environment for the uniform exicution of program.
2. It makes resource available to work in an effecient manner.

It also act as resource manager.

It manages:

• File Management
• Devie Management
• Memory
• Process Management
• Security Management
• Command Interpretation

There are two types of OS based of intraction with users:

1. GUI(Graphical User Interface)


2. CUI(Command User Interface)

Graphical User Interface:

In Graphical User Interface ,we intrect with computer by clicking on the graphical icon.ex:WINDOWS

While in Command User Interface we intract with the computer by typing commands.ex:MS-DOS#####

In current market there are many different types of Operating System (OS) present according to their needs for different sectors or uses.

Some different types of the Operating System (OS) are:

1.Single processing

2.Batch processing

3.Multiprogramming OS

4.Time Sharing OS

5.Real time System

6.Network OS

7.Distributed OS

*and many more