It describes LAN. LAN or also known as a Local Area Network can be defined as a group of computers and peripheral devices that share a common communications line or wireless link to a server within a distinct geographic area.
A local area network (LAN) contains a series of computers connected to form a network in a circumscribed location. The computers in a LAN link to each other via TCP/IP ethernet or Wi-Fi. A LAN means normally exclusive to an organization, such as a school, office, association, or church.