The term round-robin often refers to something being done to many elements belonging to a group, one element at a time. It is the idea of the task being carried out "one element at a time" that is central here.
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Round robin is the scheduling algorithm that is utilized by the CPU, or central processing unit, during the execution of the process. It is specifically designed for time sharing systems.
The Least Slack Time scheduling algorithm is used for assigning priority based on the slack time (temporal difference between the deadline, ready time and run time) of a process.
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A system could contain one or many of the following: *A time tracker *A customer scheduling system *Visiting and contact information tracker *Online payments and scheduling *Customer medical history *Billing *Online promotions and reminders
Pure round robin scheduling processes A, then B, then C, then starts at A again. (A, B, C might be tasks in an operating system context, or devices in a master/slave control network, or whatever.) That is, pure round robin scheduling doesn't acknowledge priorities, and does not allow out-of-order processing. Real-life systems typically use a mixture of algorithms that, together, allow for prioritized and out-of-order processing while, on the other hand, trying to prevent starvation of lower priority items.