Learn in the textbookNetwork Classification and the Physical Foundation of Wired Connections
DefinitionA wired LAN (有線LAN) is a LAN in which devices are physically connected by cable.
ExplanationCompared with a wireless LAN (無線LAN), which uses radio waves, it takes more effort to wire and its devices are harder to move, but communication tends to be more stable. A technology called PoE (Power over Ethernet) also sends power to devices over the LAN cable along with the data.
AnalogyIt is like a corded landline phone. The sound is steady, but you can only use it as far as the cord reaches.
Memory hookThe opposite of wired is wireless; the names split on whether there is a wire.