What are network devices?

network devices are components used to connect computers or other electronic devices together to share files or sources such as printers or fax machines. The devices used to set the local area (LAN) are the most common type of network devices used by the public. LAN requires a hub, router, cabling or radio technology, network cards, and a high -speed modem if online access is required. Fortunately, it is much less complicated than it might sound to someone new in the net.

In the network, one computer is marked as a server and the other, clients. The server is connected to an external hub to which clients are also connected. Now that each computers have one leg in conventional electronic doors (hubs), they can use a hub to pass signals here and there. For the orientation of these signals, the device is known as a router. The router is the equivalent of the electronic operation of the COP that processes the data ProOz between computers.

Does it sound good, but how does the router know one computer from another? The answer is that every computer in the network must have a network card installed. These network devices each contain a unique address. A special cabling called Ethernet from the network card to the hub is running in a firmly connected network. In the wireless network, network cards and router/hub communicate using radio waves.

Network cards

network cards identify themselves in the network and send all router requirements with a unique return address. The router reads the address "to" and "Z" and corresponds corresponding to the operation. In other types of networks, all requirements filed in the local network are sent by a router to all machines in the network, but only the machine with the corresponding address corresponds, but it is not so safe, because other machines can capture traffic that is not addressed to them.

Online Access is OPV Network of Local Area, but if included, one online account can be shared by all computers in the network. If there is an online access, a router not only controls traffic to the local network, but also processes the Internet requirements and subsequent answers. The router acts as a gateway to the Internet and also serves as a firewall hardware gateway so that the unsolicited operation flows back into the net from the wilderness.

One can add online access to LAN either by attaching a router/hub to a high -speed modem or by obtaining a high -speed modem that has a built -in router/hub. The high -speed modem must be compatible with the online service. Most modems are designed specifically for use with DSL, cable or fiber optics, although some models could be made to work with more than one technology, such as DSL and cable compatible.

When setting LAN, all network devices must be compatible. If building a firmly connected LAN using Ethernet wiring, Networkarts K will be naveWomen with Port Ethernet. When creating a wireless LAN, all network devices must not only be designed only for wireless use, but must speak the same wireless language or protocol. Since spring 2009, 802.11n has been the fastest and most up -to -date protocol, while the older protocol is still in expanded use is 802.11g. The routing/modem and network cards must be compatible with the same communication protocol.

Wireless network devices can also carry Wi-Fi® certification, guaranteed to be fully in line with standards or protocols) that supports the product. Wi-Fi certification comes from Wi-Fi alliance, organization responsible for the development of wireless protocols. Many wireless network devices are launched as one or more protocols, but lacks certification. The warranty could be an important aspect of setting up a trade LAN, but it is probably not a home Lans.