Introduction

Operating system

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Operating system is an interface between user and hardware
• Operating system is a software which manages the hardware

Function's  of operating system :-

1) Convenience: A user can use operating system conveniently.

2) Efficiency: is used to access the system resources efficiently.

3) Ability to evolve: An operating system is designed in such a way that it will allow us for effective development testing and introduction of new system function without interfering the service.

4) Through Put: An operating system can achieve maximum through put i.e. number of task per unit time.



Types of operating system :-
CUI                                               GUI          
• Character user interface.    • Graphical user interface
• It is used in connection      • It is used in connection 
with the computer.                 with the computer.
• User need to type on the     •  User can operate by 
keyboard to proceed.                clicking with mouse.
• It is not easy to navigate    • It is easy to navigate
• We can write only text in    • Graphics and icons are 
CUI.                                       there in GUI.


Operating system consist of processors, application, disk, printers, main memory, input and output devices such as keyboard, mouse, monitor, printers.


Computer Hardware : 

Computer Hardware consist of 4 parts:-

1) Hardware: it provides basic system components 
Example: compiler, assemblers, text editor, data base system.

2) Operating system: it control and co-ordinate a use of hardware among various applications for the end user.

3) Application program: it define in such a way in which these system resources can be used to solve the computing problems.

4) Users: People, computers, Machines , etc.

LEAVE SOME SPACE FOR DIAGRAM 

Type of views: 
There are 2 types of  views they are:- 

1) User view: user want convenience, does not depends upon resource utilization.

2) System view: It is focus on resource allocation among different applications for the end users.


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