Queue Theory is a mathematical study of waiting lines, or queues. It helps analyze various systems where entities, like customers or data packets, wait for service. By understanding the dynamics of queues, businesses can optimize their operations, reduce wait times, and improve customer satisfaction. This theory involves concepts such as arrival rates, service rates, and the number of servers. It can be applied in various fields, including telecommunications, traffic engineering, and computer science. Queue Theory provides valuable insights for managing resources efficiently and ensuring smooth service delivery in different environments.