Basic components of a LAN

Some of the basic components that normally form a LAN is as follows:
 1. WorkstationBecause LAN is mainly developed in the PC world so many terms related to PC. In terms of the workstation is actually a network node or host in the form of a computer system. The computer system is a system kmputer can be as simple as a PC or can also be a great computer system such as minicomputer systems, even a mainframe.User or users associated with the network through workstations and communicate with each other as well as exchange data. Users also execute (run) the program on workstation applications. The program can work alone in the workstation (stand-alone) or can also use the network, for example to share information with other workstations or users.
2. ServerAs the name implies this is a hardware or hardware that functions to serve the network and workstations that are connected to the network. Software that manages the network run (run) on the server. In general, the resources (resources) such as printers, disk, plotter, and so on to be used jointly by the user at workstations reside and work on the server.Depends on the type of service desired then known among other disk servers, file servers, disk storage that are shared by multiple workstations. Another kind is the print server, the printer used together. Note that a server can often have multiple service functions at once.The server can be a computer system that is specifically made for this purpose, so that it can not be used as a workstation, because both in hardware and software to manage the network it serves.But there are also the actual server workstation with a sizeable disk drive capacity. In this case, the server can be used also as a workstation by the user / wearer.

3. ClientA workstation typically serves as a client from a server, because the workstation will use the facilities provided by a server. So the server is serving, while the client is served. Both server and client are known as the nodes in the network.
4. Link (link)Workstations and servers can not berfungsii if the equipment is not physically connected to each other. The relationships within the LAN is known as the transmission medium is generally in the form of cable.In addition, there are basically complementary equipment that is useful to extend the network of relationships within reach such as repeater, bridge, gateway, and so on.
5. TransceiverHardware that connects a workstation or computer system with transmission media such as coaxial cable (coaxial cable) on the Ethernet LAN. So it is not directly connected workstation but through the transceiver and transceiver cable (maximum 50 meters) to the coaxial cable.It should be noted that for Ethernet required terminator on both ends of the cord to signal through the cable going well.
6. Network Interface Card (Network Controller)A workstation is not connected directly to the cable or transceiver cable networks, but through an electronic circuit that is designed specifically to handle network protocols associated with the hardware. The circuit is called a Network Interface Card or Network Controller. Network Controller is different for each type of LAN, but there is a controller circuit is designed so that it can be used for more than one type of LAN.
7. Software NetworkThis software is very important and essential, because without the software then the network will not work so that workstations and servers can not work as desired. This software also allows one computer system to communicate with other computer systems. Good or not a good LAN is largely determined by whether or not the software that manages the network.