- Modem: Modem is a combined device for modulation & demodulation.
- Routers: A router is a networking device that helps to forward data packets between computer networks.
- Bridges: Bridge connects different devices in a network. Bridgeworks in the Data Link layer.
Examples of communication media are coaxial cables, telephone cables, fibre optical cables, and twisted pair cables.
Table of Contents
- Advantages of Networking
- Network Model
- Topology
- Internet
- WWW (World Wide Web)
Advantages of Networking
The network has several advantages. Some of them are mentioned below:
- Easy to share the data & information.
- Easy to share resources like printers and other devices.
- Time-efficient and saves money.
Network Model
The Network Model is the network connection of computers over the internet. The most famous networking model is a client-server model. In this model, there are two entities, client and server. After all, a client issues a request and the server serves that request.
Topology
Topology is the structure in which the computers which interconnect with one another. Some of the network topologies are a star, bus, ring, mesh, etc.
Star Topology: Firstly, a star topology is the most common network topology. In other words, we use star topology to connect every node in the network. It can be directly connected to one central hub via coaxial, fiber-optic, twisted-pair cable. Star topology acts as a server. This central node manages data flow and transmission. Information sent from any node on the network has to pass through the central hub to reach its destination. Moreover, it functions as a repeater, which helps prevent data loss.
Bus Topology: Secondly, a bus topology aligns all the devices on a network along a single cable running in a uni-direction from one end of the network to the other. Moreover, data flow on the network follows the route of the cable, moving in only one direction.
Ring Topology: Thirdly, in a ring, topology nodes are always in the form of a ring or circle that is its arrangement is in the form of ring or circle The data travels through the ring network in either one or both directions, with each device having exactly two neighbors.
Mesh Topology: Lastly, it is a structure where all the nodes interconnect to each other through point-to-point. Mesh networks have partial or full mesh. In conclusion, partial mesh topologies are interconnected.
Internet
Internet is the collection of networks that consists of billions of computers throughout the world. Moreover, with the help of the 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 the webpages available over the internet. The webpages consist of information in the form of images, audio, text, or video. In conclusion, webpages can be inter-linked by using hyperlinks.
