The operating system is defined as set of programs that controls the entire operation of the computer such as handling input\output operation, user request interrupts etc. The operating system manages the resources of a computer system and schedules its operation.It is a master supervisor program which provids a frindly interface for the user to intract with the computer and its preipherals and different application software as well as an enviroment execute. for program to execute.
Operating system is a computer program that acts as an intermediate between the user and computer hadware. This is the first software we see when we turn on the computer and again the last softwarewe can seewhen the computre is turn off.As computer consists of various resource like memory,cpu,disks etc.,it's very difficult for the user of the computer to understand how to operate them directly. So, os becoms the interpreter between the computer hadware and user.It interprets the command of the user to the hardware and present the output to user in a sutaible format proudce by hardware.