Priority Queuing is a method used in computer networking and telecommunications to manage data packets based on their importance. In this system, packets are assigned different priority levels, allowing more critical data to be processed before less important information. This ensures that time-sensitive applications, like VoIP or online gaming, receive the necessary bandwidth and low latency. In a Priority Queuing system, multiple queues are maintained, each corresponding to a different priority level. When the network device, such as a router or switch, processes data, it first handles packets from the highest priority queue. This approach helps improve overall performance and user experience in environments where certain data must be prioritized.