backbone
Physical layer devices would be a hub or a repeater to connect multiple Ethernet segments together.
bridge
Bridge
They are designed to interconnect local network segments.
bridge
bus network
You may make a network so you can connect to any print devices available to that network.
This is the definition of a computer network. Devices such as routers and bridges create logical network subnets and network domains that computers, printers, and other devices can connect with to join the network.
Local Area Network
The other two segments must be link segments - connecting through network connectivity devices. Adding any clients on those two links would cause additional attenuation, which is not good for the network.
A router
One device that is shared on the network is a router. This is the one that will connect the various devices to the shared network.