Definition of Computer Networks

The computer network name is the one used to make reference to a type of connectivity that can exist between different computers or technological devices and whose objective is to share the data that exists within a computer to others that are part of the network. In this way, access to such data is easier as long as it is computers accepted by the network, and it is also more insurance because it prevents them from going out to external spaces not approved by the predesigned network.

The computer network is a network that can be established in different ways between computers that are on the same environment or not. The connection between the different computers or technological devices is normally established both through from physical media (such as cables and other connectors) as well as from radio waves and satellite.

It is important point out that computer networks are especially useful for spaces or environments in which it is necessary for data to be shared freely by different users that are part of the network, protecting them in addition to the undue access of external viewers potentially dangerous. One of the clearest and most common examples is that of work spaces in which many people work with the same

operating system and same file system and must permanently to access to file and data folders that formally exist on a computer. From these networks, although the computer does not have all the files in its memory, yes you can access them through network connections.

There are many types different networks that vary according to the needs of users. Thus, there are local networks or LANs that are a little more extensive than the personal or PAN networks that are usually chosen in domestic settings. Metropolitan or MAN networks are even more extensive and even surpassed by WAN computer networks.

Topics in Computer Networks