What network device connects multiple computers within a local area network?

A switch is a network device that connects multiple computers within a local area network (LAN). It operates at the data link layer (Layer 2) of the OSI model and is designed to facilitate communication between devices in a network by forwarding data packets to the appropriate destination device based on MAC addresses. This results in efficient data transfer and reduces unnecessary traffic, as a switch directs packets only to the specific device that requires the data rather than broadcasting it to all devices in the network.

In contrast, a router connects different networks together and routes data between them, while a modem provides access to the internet by converting signals for communication over telephone lines, cable systems, or satellite connections. An access point enables wireless devices to connect to a wired network but does not function as a switch does. Thus, the characteristics and functions of a switch clearly make it the appropriate choice for connecting multiple computers in a LAN setup.