PCB generally includes

PCB generally includes:

1 program ID (PID, process handle): It is unique, a process must correspond to a PID. PID is generally plastic figures

2. Characteristic information: General sub-system processes, user processes, or kernel processes

3. Process status: running, ready, blocked, that the process is running

4. Priority: Indicates the priority of CPU control

5. Communication information: the communication between the process of reflection, the operating system will provide communication channel

6. Site Protected Area: to protect the process of blocking

7. Resource requirements, allocation of control information

8 process entity information, specify the program path and name, the process data in physical memory or in the swap partition (paging)

9. Other information: work unit, work area, document information and so on