Introduction to Network
Last updated
Last updated
A network consists of two or more electronic devices or objects linked in order to share resources, exchange files, or allow electronic communications.
Computer networking refers to interconnected computing devices that can exchange data and share resources with each other.
The Internet is a larger network that allows computer networks controlled by enterprises, governments, colleges, and other organizations all over the world to communicate with one another.
The Internet is a vast network of networks that functions as a networking infrastructure.
It links millions of computers throughout the world, creating a network in which any computer can talk with any other computer as long as they are both linked to the Internet.
The Internet is a global network of interconnected computers that communicate and share information using a standardized Internet Protocol Suite.
Computer Networks are one of the important aspects of Computer Science. In the early days, it is used for data transmission on telephone lines and had a very limited use, but nowadays, it is used in a variety of places.
Modern computer networks have the following functionality:
Computer Networks help in operating virtually
Computer Networks integrate on a large scale
Computer Networks respond very quickly in case of conditions change
Computer Networks help in providing data security
The structure of the network and how each component is connected to the others are defined by the network topology. Different types of network topology are mentioned below:
Bus Topology
Ring Topology
Star Topology
Mesh Topology
Tree Topology
Every computer and network device is connected to a single cable in a bus topology network.
Linear Bus topology is defined as having exactly two terminals.
The topology is named ring topology because one computer is connected to another, with the final one being connected to the first. Exactly two neighbors for each device.
A signal is passed along the ring in one direction. Each ring incorporates a repeater.
Each device in a star topology has a dedicated point-to-point link to a central controller, which is commonly referred to as the HUB.
There is no direct connection between the devices.
Traffic between the devices is not allowed in this topology. As an exchange, the controller is used.
Every device in a mesh topology has dedicated point-to-point connectivity to every other device.
The term “dedicated” refers to the fact that the link exclusively transports data between the two devices it links.
To connect n devices, a fully connected mesh network contains n *(n-1)/2 physical channels.
The topology of a tree is similar to that of a star. Nodes in a tree, like those in a star, are connected to a central hub that manages network traffic.
It has a root node, which is connected to all other nodes, producing a hierarchy. Hierarchical topology is another name for it.
The number of Star networks is connected via Bus in Tree Topology.
