Operating system
An operating system is a set of programs that manage, controls, co-ordinates and supervise the activities of computer hardware and software.
An operating system manages computer resources and provides a common service for computer program.
In short, an operating system is system software that allows running computer for its various users.
Functions of operating system
An operating system act as a bridge or medium between computer hardware and its users.
An operating system provides common platform on which users can executes program in an efficient manner.
An operating system uses password protection to user data and similar other technique.
An operating system helps to improve computer performance or health by providing adequate information needed to troubleshoot problems.
An operating system keeps track of time and resources used by various users in order to collect their information for future needs.
Operating systems constantly monitors and supervise the system to detect and prevent possible errors.
An operating system manages computer memory by keeping track of what software applications are open and where it has put them in RAM.
An operating system decides in which processes the processor have access and time for it.
An operating system manage device by keeping track of all device connected to the system
An operating system manage file in where information is stored, user access setting, and status of every files and more.
A bank needs these services for their daily financial transactions, and all these services are ensured by the operating system. A computer must have one operating system in order to run program, and maintain computer health or performance
