Commonly abbreviated as Local Area Network LAN is a computer network whose network covers only a small area, such as campus computer networks, buildings, offices, in homes, schools or smaller. Currently, most LANs based on IEEE 802.3 Ethernet technologies using a switch device, which has a data transfer speed 10, 100, or 1000 Mbit / s. In addition to Ethernet technology, the current 802.11b technology (or so-called Wi-fi) is also often used to form a LAN. Places that provide a LAN connection with a technology called Wi-Fi hotspots.
On a LAN, each node or computer has the computing power of its own, different from the concept of a terminal dump. Each computer can also access resources on the LAN in accordance with permissions that have been set. These resources can be data or devices such as printers. On a LAN, a user can also communicate with another user by using the appropriate application.
In contrast to Wide Area Networks or Wide Area Network (WAN), then the LAN has the following characteristics:
1. Has a higher data rapidly
2. Covers a narrower geographical area
3. Does not require leased telecommunication lines from telecom operators
Usually one of the computers on the network computer that will use the servers that manage all systems within the network.
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