lan network

Although the term “network” can be defined in several ways, in our context it can be defined as a collection of computers and external devices interconnected by means of communication such as coaxial cables, twisted pair wires, and optical fibers. Depending on their geographical coverage, three main categories of networks can be identified:

 

 Wide Area Network (WAN): This area belongs to computers and interconnected external devices within a geographic area of ​​10 kilometers or more. They usually cover the whole country.

 

 Metropolitan Networks (MAN): This is a species that covers a single metropolitan area.

   

lan network  

 

Local Area Networks (LANs): "... are concerned about the interconnection of computer equipment items (office workstations, sensory instruments, etc.) that are distributed across a local area, such as a university campus or process center. Networks". (Halsall, 1988).

 

LANs may differ from other networks in length. The total coverage can be from 1 km to 10 km. LAN data transfer speeds are much higher than in other types of networks. When WANs are operating at 1 Mbps, LANs can transmit data at 1 - 10 Mbps. The data transfer error rate is slow due to the shortest distance between devices. Because local area networks are located within a smaller building or area, they belong to a special group. This local control gives local networks more flexibility than other types of networks.