Function of OS

1) Starting a computer - The process of starting or restarting a computer is called booting.     

2) Provide a user interface -We interact with software through its user interface. That is user interface control how you enter data and instructions and how information is displayed on the screen. Three types of user interface are :                                                                                                                                                             

   i) Command Line Interface (CLI) - Command Driven Interface 

  ii) Menu Driven Interface - Menu Driven Interface 

                                                                                           

 iii) Graphical User Interface (GUI) - Icon Driven Interface

                            

3) Managing Programs- Some operating systems support a single user and only one running program at a time. Others support thousands of users running multiple programs.

4) Managing Memory- The computers operating system is responsible for managing memory such as 
   a) Allocating data and instruction to an area of memory while being processed.
   b) Monitoring the contents of memory.

5) Configuring Devices- A driver, short for device driver ,is a small program that tells the operating system how to communicate with specific device. Each device on a computer such as ;   

          

Mouse 

Printer 

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