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Network cards are used to connect a personal computer to a LAN. A computer with a network card can be a network participant.

Hubs are used to connect participants (PCs and other LAN devices).

Bridges are used to connect parts of LAN with each other. Possibly because they operate on a different medium (copper wire, glass fibre).

Routers are used to connect networks with each other (LANs with other LANs; LANs with the internet, etc.)

Switches are a mix between Hub and Bridge.

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14y ago

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