Networking creates sense for a big or even small organizations and personal computer holders. Computer networking is regarding sharing resources. These consist of disk drives, data, applications, printers, modems and so on. The networking hardware establishes the link between every computer. The networking software makes sure that communication happens.

Therefore computer networking is basically the concept of linking two or more computers that permits these computers to exchange resources. This sharing can be made among computers used in home, offices and even internationally. The biggest and most known example of networking is internet because it comprises of lots of computers which share information among each other.

The sharing of fax machines, printers, and modems between numerous computers and users decrease the operational expenses. A database on a network is a very important element because it saves and runs lots of important data and jobs.

Because of such networking lifestyle of many people has been changed. It has given people the opportunity to work from home. Big organizations and businesses can also do videoconferences. Information about any feasible topic is on hand by just the click of a mouse. But it has some drawbacks as well. Hackers usually aim to break into company files; steal the information and the networks themselves can have technical issues or crash entirely.

As computer networking becomes part of our daily lives. These networks are categorized according to the size and area such as Local Area Networks (LAN), Wide Area Networks (WAN), Metropolitan Area Networks (MAN) and Personal Area Networks (PAN). The networking hardware mostly contains wires, network cards and a hub. The network cards are needed in order to understand what one computer is saying to another computer.

Network cards contain a distinctive MAC address to recognize computers on a network. Hubs link every computer in the network. Hubs might also be used to link another hub to extend the networking. It is the job of the networking expert to maintain the networks and keep them running. The experts are being called to protect private, organization and government information by frequently altering security processes.

Computer networks included a new element to the 21st century. Nowadays the cyber world is much rapid and wider as compare to the actual world. This has all been made possible because of computer networks.

It has transformed business, communication, journey, investigate, security, civilization and almost all human activities. The development of computer networks has helped the industrial revolution take a big forward jump.