An operating system is a program , which acts as an interface between user of a computer and computer hardware . It provides an environment to run other programs also , this make complete system convenient to use.
Operating system provides certain services to the programs and to the users ,
The three major types of services are as follows:
1) Information management :-
It manages the organisation of information in terms , of directories and files , allocating, deallocating the sectors to various files ensuring the right people have access to infomation .
2) Process management:-
Process management helps OS to create and delete processes. It also provides mechanisms for synchronization and communication among processes.
3) Memory management:-
Memory management module performs the task of allocation and de-allocation of memory space to programs in need of this resources.
