Computer networks are classified by nature. They LAN, WAN, MAN and PAN networks. These are the relatively small LAN, consisting of several hundred computers, in the same building and are directly linked. A LAN that is not bringing with them a wireless LAN cable. Large networks, a large geographical area, such as cities or two countries are involved in a WAN.
WANs were initially very expensive. However, most of these networks in use today use the Internet, which is universal and publicly, not to be so controlled by the user and to be very beneficial from a financial point of view. Last but not least, the networks PAN Personal Area Networks, which are the smallest networks on an area of ??several meters at most. Such a network includes several computers that are connected and that a person is carrying. You have a cell phone, for example, the MP3 player or a portable navigation system.
On the other hand, the cables from people who have a small or a large area are used by their country, the joint surface and accessible to all neighbors and is the property of each. Such a network requires that all the neighbors who have access to pay for the maintenance and repair.
Communication have an area where they can achieve all your wishes. This is done mainly via broadband connections, the strongest, the fiber. Technically, the data transmission via optical fiber on the conversion of electrical pulses of light. This light is then transmitted through the bundles of glass fibers and then converted into electrical impulses. This means that the transmission rate is very high compared to other connection types. In addition, the optical fiber is confident that it is insensitive to electromagnetic interference and inaccessible for illegal scans. In addition, it can be installed faster and easier because of the ease are the optical cable and the existence of several types of cables.
If we relate the infrastructure of the RDS, we also refer to hackers, computer enthusiasts and people who are usually in the hacking of various codes, databases, websites and so uninteresting. Most countries in the world consider hacking a crime. Real hackers do not destroy the pages harmless as personal. They are usually too large systems, security systems and ad with classified information have on. An example would be the databases of the Pentagon or NASA. Be published when these systems are hacked, and information received, these sets of files and information across the Internet, it can bee seen and used by many users as possible.
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