# Round robin

Round robin is a method of data transmission in which each unit of data is sent to the next receiver in line, and then the last receiver sends the data back to the first receiver. This process is repeated until all units of data have been sent.

#### What is round-robin with example?

Round-robin is a method of scheduling data transmissions in which each source is given a fixed amount of time to transmit, and then the next source is given a turn. This process is repeated until all sources have had a turn.

For example, suppose there are four sources of data that need to be transmitted: A, B, C, and D. Using the round-robin method, each source would be given a turn in the following order: A, B, C, D, A, B, C, D, etc.

### Why do they call it round-robin?

The term round-robin is derived from the French word "ruban," meaning "ribbon." It was originally used in the context of horse racing, where each horse would take a turn in the lead, and the winner would be the horse that completed the course first.

In data transmission, the term round-robin refers to a scheduling algorithm that assigns a fixed amount of time (known as a time slice or quantum) to each process in a set. The scheduler then cycles through the processes in a fixed order, giving each one a turn to run for the allotted time.

This scheduling algorithm is used in a variety of situations, such as:

1. When there are a large number of processes that need to be run, and it is not feasible to run them all at the same time.

2. When the processes are of equal importance and need to be given a fair share of resources.

3. When the processes are of different types (e.g., I/O-bound and CPU-bound) and need to be run in a way that maximizes overall throughput.

##### What does round-robin mean in business?

Round-robin is a scheduling algorithm used in business process management and data transmission. In business process management, round-robin is used to schedule the order in which tasks are executed. For example, if there are four tasks to be completed, task A will be completed first, followed by task B, then task C, and finally task D. In data transmission, round-robin is used to schedule the order in which packets are transmitted. For example, if there are four packets to be transmitted, packet A will be transmitted first, followed by packet B, then packet C, and finally packet D. What is another term for round robin? A round robin is a type of data transmission where each piece of data is sent to each destination in turn. This is in contrast to a broadcast, where data is sent to all destinations at once, or a unicast, where data is sent to a single destination.

##### Why round robin scheduling is best?

Round robin scheduling is a type of scheduling where each process is assigned a fixed time slot in a cyclic way. It is the most commonly used scheduling algorithm in CPU scheduling.

The main advantage of round robin scheduling is that it is simple to implement and understand. It is easy to compute the amount of time each process needs to wait. Round robin scheduling is also fair, as each process gets the same amount of time in the CPU.

Another advantage of round robin scheduling is that it is more efficient than first come first served scheduling, as it avoids process starvation.

A disadvantage of round robin scheduling is that it can cause high overhead, as each process needs to be context switched in and out of the CPU. This can lead to decreased performance.