The role of the operating device is to manage the access and the control over the input and the output devices.
Input devices are those devices which are used to give the input or the information to the system some of the input devices are mouse, keyboard etc.
Output devices are those devices which are used to get output from the computer. For example Monitor, printer etc.
The management of numerous input and output devices, such as the mouse, touch pad, keyboards, disk drives, devices, on/off switch, network connections, printers, etc., is under the Operating System's purview.
It ensures that every keyboard or mouse click from the user receives an accurate answer in a timely manner, even when multiple processes are vying for the same resource at the same time.
A software interrupt, also known as a system call, is used to notify the operating system of any request made by the user for any Input/Output device.
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