The four major functions of an operating system are

1.The four major functions of an operating system are:
Managing programs
Managing Memory
Handling input and output
User Interface
Managing programs
Managing programs is one of the functions that are most dramatic effect to the operating systems overall quality. There are many different systems that are used for managing programs. You have single tasking, in which you can run only one program application at a time. Multi-tasking in which in the normal operating system allows a single user to work with more than one program at a time.
Managing memory
The second function of an operat…