Operating System (OS)

Operating System
               An operating system is a set of programs that lies between applications software and the computer hardware.We can say an operating system acts as a host for applications that are run on the machine. We can also say an operating system software is an intermediary between the hardware and the applications software.

               Sometimes system software is sometimes used interchangeably with operating system, but system software means all programs related to coordinating computer operations. System software does include the operating system, but it also includes the BIOS software , drivers, and service programs. WINDOWS, LINUX, UNIX are all types of operating system.

FUNCTIONS  OF  AN OPERATING  SYSTEM 
An operating system has three main functions:

• To manage the computer's resources, such as the central processing unit, memory, disk  drives, and printers, (taken care of without the user being aware of the details)
• To establish a user interface  
• To execute and provide services for applications software.  

Having known a little about what an Operating system is you may want to know the services of an operating system. This is readily available in my next post.



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