Universal Plug and Play (UPnP) is a set of networking protocols that allows devices on a local network to discover and communicate with each other seamlessly. It enables devices like printers, computers, and smart TVs to connect without requiring manual configuration, making it easier for users to share resources and services. UPnP works by using standard Internet protocols, allowing devices to automatically join a network and establish connections. This technology is commonly used in home networks, facilitating tasks such as streaming media, sharing files, and controlling smart home devices without complex setup processes.