LAN Architecture

Any computer network is difficult to imagine themselves without the use of computers and transmitting information environment. In these articles, the term computer is replaced by a computer - electronic computer. 

By transmitting information to include communication channels, which can be wired or wireless.

To a wired communication channels can be attributed to connect computers using copper conductors - twisted pair - and optical, conducting data transmission over fiber optic conductors.These channels of communication technology use Ethernet. 

For wireless, or as they are called - radio channels communication protocols include the use of Wi-Fi, Bluetooth, GPRS. 

Regardless of what channels are used, computers must have their address on the network, which is assigned the address IP (Internet Protocol - Internet Protocol), which will be discussed in a special article. 

Local network is characterized by such parameters as the network topology - a scheme to connect devices transfer information network. To distinguish several topologies LAN: 

tire; 

ring; 

Star; 

grill etc. 

Each topology has its advantages and disadvantages. Now the most common topology is a star, because the creation of such a topology requires the least additional funds and it does not depend on the performance of individual computer networks. Article "star topology" is devoted to a detailed description of the above topology. 

So to summarize - in order to build a local area network LAN, you must have at least two computers, and if their number exceeds two computers, you must have the device, transmitting the information, and of course their own channels of communication, which will be data . 

Under Local Area Networks