Distinguish among pcs and scs scheduling, Operating System

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Q. Distinguish among PCS and SCS scheduling.

Answer: PCS scheduling is completed local to the process. It is how a thread library schedules threads onto available LWPs. SCS scheduling is the circumstances where the operating system schedules kernel threads. On systems utilizing either many-to-one or many-to-many the two scheduling models are fundamentally different. On systems utilizing one-to-one PCS and SCS are the same.

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