The operating system manages many kinds of activities ranging from user programs to system programs like printer spooler, name servers, file server etc. Each of these activities is encapsulated in a process. A process includes the complete ***** context (code, data, PC, registers, OS resources in use etc.).
The five major activities of an operating system in regard to processor management are :
Creation and deletion of user and system processes.
Suspension and resumption of processes.
A mechanism for process synchronization
A mechanism for process communication.
A mechanism for deadlock handling.
