What do you mean by processor management of operating system ?

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 execution context (code, data, PC, registers, OS resources in use etc.). 

The five major activities of an operating system in regard to processor management are : 

1. Creation and deletion of user and system processes. 

2. Suspension and resumption of processes. 

3. A mechanism for process synchronization 

4. A mechanism for process communication. 

5. A mechanism for deadlock handling.