Description: in process management and scheduling simulation systems, involving a total of two classes and the structure of one : the structure of the PCB, the chain queue category and OS category. After commencement of the operating system, the system will exist PCB pool, the process used to store PCB structure, the PCB decided to pool the size of the system can process at the same volume. In this system, the system can also assume that the process at 20, with an array of PCB said. The PCB PCB pond will come in four state : operations, readiness, obstruction of state and idle, so the operating system will have four cohort : Run queue, ready right out, blocking the queue and idle queue. With the creation of the process of scheduling the operating system will be in these four cohorts changes.
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