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A scheduler is the heart of every RTOS. It provides the algorithms to select the task for execution. Three common scheduling algorithms are

> Cooperative scheduling

> Round-robin scheduling

> Preemptive scheduling

RTOS uses preemptive (priority based) scheduling.

In some cases, real-time requirements can be met by using static scheduling.

It means scheduling one after another.

Stream Scheduling is a scheduling system where there is a steady stream/flow of patients at set appointments throughout the day.

why we use disk scheduling in c ?