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Networking is an interconnection of computer networks, which connect with communication devices using communication mediums. In addition, modems, routers and bridges are an example of communication devices.
- Modem: A modem is a combined device for modulation and demodulation.
- Router: A router is a networking device that helps forward data packets between computer networks.
- Bridge: A bridge connects various devices in a network. Bridgework in the data link layer.
Examples of communication medium are coaxial cable, telephone cable, fiber optical cable and twisted pair cable.
Benefits of networking
The network has several advantages. Some of them are described below:
- Sharing data and information is easy.
- It is easy to share resources such as printers and other devices.
- Time-efficient and saves money.
Network model is the network connection of a computer to the Internet. The most well-known networking model is the client-server model. In this model, there are two entities, client and server. Eventually, a client issues a request and the server completes that request.
Topology is the structure in which computers interconnect. Some of the network topologies are a star, bus, ring, mesh etc.
Star topology: First, a star topology is the most common network topology. In other words, we use the star topology to connect each node in the network. It can be directly connected to a central hub via coaxial, fiber-optic, twisted-pair cable. The star topology acts as a server. This central node manages data flow and transmission. The information sent from any node on the network has to pass through a central hub to reach its destination. In addition, it acts as an iterator, which helps prevent data loss.
Bus topology: Secondly, a bus topology aligns all devices on a network, running from one end of the network to the other end with a single cable. In addition, the data flow on the network follows the cable’s path, moving only in one direction.
Ring topology: Third, in a ring, the topology nodes are always in the form of a ring or circle, which is arranged as a ring or circle. The data travels through the ring network in one or both directions, with each device exactly. Two neighbors.
Mesh topology: Finally, it is a structure where all nodes connect to each other through point-to-point. Mesh networks consist of partial or complete nets. Finally, partial mesh topologies are interconnected.
The Internet is a collection of networks that have billions of computers worldwide. Also, with the help of internet, we can transfer data or information from one part of the world to anywhere in the world.
WWW (World Wide Web)
The World Wide Web (WWW) is a collection of all webpages available on the Internet. Webpages contain information in the form of images, audio, text or video. Finally, webpages can be linked together using hyperlinks.