Local Area Network
the connection of computers and networkable devices confined to a specific area
Synonyms, Abbreviations or Trade Names: LAN
Layman's Definition: Using the restaurant analogy a Local Area Network would be the delivery system used to deliver food outside of the restaurant, such as to a patron's home. In this scenario the food is always handled by one of the restaurant's employees and thus is still in the possession of the restaurant and safe from tampering from the outside world throughout the foods journey until it reaches the patron.