Devices Computer Networking (LAN

LAN is composed of several basic elements that include hardware and software components. The components include: Personal Computer (PC), Network Interface Card (NIC) and order some computer cables are connected, it would require a device that connects two or more computers. Device - the device is as follows:
a) Personal ComputerType used in personal computers in the network will largely determine the performance of the network. Computers with high performance will be able to send and access data in the network quickly. In the type of Client-Server network, server computer that functioned as an absolute must have higher performance than the other computers as his workstation, because the server will be responsible for providing facilities and manage the network operations.
b) Internet Network Card (NIC)Based on the type of bus, there are several types of network interface card (nic) or a network card, the ISA and PCI. When this type of network card is widely used, the PCI.


c) WiringComputer network is basically a network cable, connect one side to the other side, but that does not mean a closed curve, it could be an open curve with diujungnya terminator). Along with the development of technology, connecting the computer underwent a similar change, ranging from telegraph technology that uses radio waves to fiber optics and laser technology became the foundation of the development of the computer network.Each type of cable has different capabilities and specifications, therefore, made the introduction of cable types. There are three known types of cable in general, namely:
1) Coaxial CableThere are two types of coaxial cable, the thick coaxial cable (has a fairly large diameter) and thin coaxial cable (has a smaller diameter).
Thick coaxial cable (Coaxial cable "fat")This type of coaxial cable specified by the IEEE 802.3 standard 10BASE5, where the cable has an average diameter of 12mm, and is usually colored yellow. This type of cable commonly referred to as a standard ethernet or thick Ethernet, or simply abbreviated ThickNet, or even simply referred to as the yellow cable. The Coaxial cable (RG-6) when used in the network have the specifications and rules as follows:
 Each end must be terminated with 50-ohm terminator (recommended use terminator is already built, instead of using a single 50-ohm resistor 1 watt, because the resistor has a fairly wide voltage dissipation).
 Maximum of 3 segments with connected equipment (attached devices) or a populated segments.
 Every network card has a extra transmitter (external transceiver).
 Each segment contains a maximum of 100 network devices, including repeaters in this case.
 The maximum cable length per segment is 1,640 feet (or about 500 meters).
 The maximum distance between segment is 4,920 feet (or about 1500 feet).
 Each segment must be grounded.
 The maximum distance between the tap or from the main cable keperangkat pencabang (device) is 16 feet (about 5 meters).
 The minimum distance between the tap is 8 feet (about 2.5 meters).