Grid computing is a distributed computing paradigm that focuses on the aggregation and coordinated utilization of geographically dispersed and heterogeneous computational resources. As a research field and methodological approach, it investigates the principles, middleware, and infrastructure required to create a virtualized, secure, and scalable environment for dynamic resource sharing and problem-solving across organizational boundaries. Its significance lies in enabling access to massive computational power for large-scale scientific simulations, data-intensive applications, and collaborative research initiatives, transcending the limitations of individual systems and fostering resource optimization.