In general, it is a kind of software installed on a laptop, computer, or tablet so that users can access it. In the absence of an OS, a typical user cannot use the device at hand.
It transports the information from an individual user into the system that is able to process it.It also provides the result of these actions to the user to view on the computer's screen or on the decided screen. The OS regulates external devices, such as printers, hard drive scanners, and so on. It also keeps records of the file directory and storage.