Explanation:
Round Robin (RR) is a preemptive CPU scheduling algorithm designed for time-sharing systems. Each process is assigned a fixed time quantum, and the processes are executed in a cyclic order. If a process does not complete within its allocated time, it is moved to the end of the queue.

This algorithm ensures fairness and responsiveness by giving all processes an equal share of CPU time. It is particularly effective in environments with interactive applications.

The performance of Round Robin scheduling depends heavily on the size of the time quantum. A small time quantum increases context switching, while a larger time quantum reduces system responsiveness.

Formal Definition:
Round Robin Scheduling is a preemptive CPU scheduling algorithm that allocates a fixed time quantum to each process in a cyclic order, ensuring fairness and responsiveness in time-sharing systems.

Additional Information:
Round Robin scheduling strikes a balance between fairness and efficiency. It prevents starvation by ensuring that every process gets an opportunity to execute.

Although simple to implement, it may suffer from high context-switching overhead if the time quantum is too small. Practical systems often use adaptive time quanta based on process priorities.