A device that connects nodes/devices together.​ It transmits the data packets by broadcasting them across the whole of the network.​

A device that connects two or more nodes/devices together and directs data packets to the correct device using the MAC address.

A device used to connect two or more networks to one another.​ They manage the data packets enabling them to be sent between networks (e.g. over the internet)

Typical cable used in a network to connect the different nodes together. These are the cheapest network cable but have slower data transfer, uses copper wires to send electric signals

These are network cables that connect nodes and send data through light signals. These are transfer data faster than the other type of cables but cost more.

Allows for wireless devices to connect to a network (either LAN or WAN).​ Includes connections through Wifi which are must slower than a direct cable connection.

A computer device that provides a service to another computer for example this could be to save files and software centrally, store emails or hold a queue of documents waiting to be printed.