Which device is responsible for connecting different types of networks?

The device responsible for connecting different types of networks is a router. Routers operate at the network layer of the OSI model and are designed to direct data packets between different networks based on IP addresses. They play a crucial role in facilitating communication between dissimilar networks, such as connecting a local area network (LAN) to the internet or linking multiple LANs together.

Routers make decisions about the best path for data to travel and can also perform network address translation (NAT) and firewall functions to improve security. This capability to connect different network types and manage traffic efficiently distinguishes routers from other devices commonly used in networking.

Switches, while essential for connecting devices within the same local network, do not have the capability to connect different networks. Hubs are basic devices that merely forward data to all connected ports without any intelligence, and access points are primarily used to allow wireless devices to connect to a wired network. Thus, the router is the key device designated specifically for inter-network communication.