1.describe the life circle of process

 

 

 

Process is a dynamic entity, from creation to extinction, is the whole life cycle of a process. Possible process

 

There are three kinds of states.

 

+ Ready state: The process has acquired all other resources except the cpu, waiting for the CPU to schedule in the ready queue

 

+ Execution status: the CPU has been obtained and all required resources are running

 

+ Blocking state (waiting state): A process abandons the processor or process b