The computer network is not only connecting the single computer, but also digital data transmission equipment. These devices are different depending on the technologies used by different networks. However, devices such as network interface cards (NICs), bridges, hubs, switches and routers can be inserted. Besides them, an Ethernet card may be required. The connection methods common to the Category 5 cables electrical, fiber optic cables.Sometimes, directional (as in IEEE 802.12) is also used to connect these devices.
Network Adapters
Wireless Network Bridge
A network card, network card or network interface card (NIC) is a hardware that allows computers to communicate over a computer network. Physical access to a support network is equipped with this device. Often a low-level addressing system is also of this device with the use of MAC addresses provided.Relay
A repeater is out for its ability to clean the noise from the received signals. This electronic device regenerates and noise-free transmission with a higher power, relieve the obstruction. Thus, signals can propagate over long distances without loss of quality. Repeaters are required for cable lengths over 100 meters in most of the twisted-pair Ethernet configurations.
Hubs
In the network hub with multiple portsPackage arrived in a port, then resume on all ports of the hub for the transfer without modification. The destination address in the frame is not changed in a broadcast address.
Bridges
Network Bridge connect network segments. These plants is never transmitted to the ports except the receipt of shipment. However, do not copy bridges traffic on all ports, but also identify available MAC addressesthrough specific ports.
Switches
Activate the filter block of data between ports according to the MAC addresses of packets. Unlike hubs, it forwards the frame only to ports connected to the communication ports in place of all those involved. A switch to interrupt the collision domain, but is itself a broadcast domain. Switches to determine frame forwarding in terms of MAC addresses. Each switch is usually a lot of doors. Helps facilitate a starTopology of network devices and switches cascade. Some switches are capable of routing.
Router
Routers are network devices that forward packets between networks. The packet forwarding depends on the information in the header of the protocol, and also of forwarding tables. These two determine the best next router for each packet.
Network Softwarewireless network bridge