Local Area Network (LAN)
 A local area network (LAN) is a group of computers and devices (printers, modems, fax machines, Apopka Controllers...) that share a common communications line or wireless link and typically share the resources of a single processor or server within a small geographic area (for example, within an office building). Usually, the server has applications and data storage that are shared in common by multiple computer users. A local area network may serve as few as two or three users (for example, in a home network) or as many as thousands of users (for example, in a large office building).

LAN Basics