A group of computer connected together to communicate with each other with some peripheral devices is called networking of computers. Computer networking is playing a major role in any company, firm and in organization. Networking is the practice of linking two or more computing devices together for the purpose of sharing data. Networks are built with a mix of computer hardware and computer software. With networking you can share PC, data, peripheral devices and allow and disallow permission to users on network. Also you can access any computer from your computer network and solve the problem on your own pc, without having the need to move on the problem site.
There are many type of Networking but commonly used networking are mentioned below:
LAN – Local Area Network is connected network devices over a relatively short distance, in a networked office building, school, or home usually contains a single LAN, though sometimes one building will contain a few small LAN and occasionally a LAN will span a group of nearby buildings. The simplest and easiest way is the peer-to-peer connection network. This is when two or more computers are directly connected to each other. LAN is used in small office, in a building or in group of buildings.
WAN – Wide Area Network is a geographically-dispersed collection of LAN. A network device called a router connects LAN to a WAN. In IP networking, the router maintains both a LAN address and a WAN address. LAN and WAN were the original categories of area networks, while the others have gradually emerged over many years of technology evolution. Internet is the largest WAN example. a LAN based on WiFi wireless network technology. WAN is much more complex and requires connecting devices or hubs from all over the world.
MAN – Metropolitan Area Network is a network spanning a physical area larger than a LAN but smaller than a WAN, such as a city. A MAN is typically owned an operated by a single entity such as a government body or large corporation. It area coverage is 0-10 KM.
Network Advantages:• Software and other application can be shared.
• Computers can communicate
• Files and data storage can be shared.
• Peripheral devices like printer, scanner etc. can be shared.
Networks Disadvantages:• Hackers and viruses can easily attack the system
• If there is a problem with server then it can may affect other computers
Following characteristics are also used to categorize different types of networks:
Protocol : The protocol defines a common set of rules and signals that computers on the network use to communicate. One of the most popular protocols for LAN is called Ethernet.
Topology : The geometric arrangement of a computer system. Common topologies include a bus, star, and ring and mesh topology.
Architecture : Networks can be broadly classified as using either a peer-to-peer and client/server architecture.
These are the technologies to set a networking of computer and take the benefits of it. This network connection sharing and services interact through a communication link. A computer network is very useful in a business. Often a company will have created more than one computer and it is often very beneficial for all computers on the network of offices.