The technology that allows multiple devices to connect to the internet through a single point is known as a router. Routers facilitate the sharing of internet connections among devices in a network, such as computers, smartphones, and printers. They manage data traffic, ensuring efficient transmission of information between the local network and external networks. Routers often include features like wifi connectivity, firewalls, and network security protocols to protect data. This technology is essential for home and enterprise networking, enabling seamless internet access.