Cluster computing refers to the practice of connecting multiple computers together to work as a single system. This approach allows for parallel processing, which enables tasks to be divided among the individual computers in the cluster, significantly increasing computational speed and efficiency. Cluster computing is commonly used in scientific research, data analysis, and other applications that require high-performance computing capabilities. It enables large-scale simulations, data processing, and other computational tasks to be completed more quickly and efficiently than would be possible with a single computer. Additionally, cluster computing provides scalability, as more computers can be added to the cluster to increase its processing power as needed.