What is the Operating Systems in computer?

An operating system plays an important role in the use Computer. It prepares a bare Machine usable for the user. In other words an operating system works as an interface between Computer and user. The operating system enables the user to use the system resources and access several other programs effectively. Windows operating system offer icons, graphics based interface to the users and they can mouse to perform a number of operations.

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Types of Operating Systems

Single User, Single task: These types of Operating System manage the computer so that one user can effectively do one thing at a time.
Single User Multi-tasking: Microsoft’s Windows and Apple’s Mac OS are both example of operating systems that will let a single user several programs in operation at the same time.

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Multi User, Multi-task: This allows two more users to run programs at the same time. Some operating systems permit hundreds or even thousands of concurrent users to work on for example Mainframe computers.
Real Time Operating System: This kind of operating system is used to control machinery, scientific instruments, and industrial systems. Resources are managed so that a particular operation executes precisely the same every time.

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