Cluster computing is an area of research and a methodological approach within computer science concerned with the design, implementation, and management of systems composed of multiple independent, interconnected computers that operate collaboratively as a single, unified computational resource. This concept investigates architectural principles, resource management techniques, and application paradigms for leveraging distributed processing, resource sharing, and fault tolerance across the constituent nodes. Key characteristics include scalability, cost-effectiveness through the use of commodity hardware, and the potential to achieve high performance or high availability for demanding computational tasks and large-scale data processing, representing a significant approach for addressing problems beyond the capabilities of single machines.