Network topology

Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer network. Essentially, it is the topological structure of a network, and may be depicted physically or logically. Physical topology refers to the placement of the network's various components, including device location and cable installation, while logical topology shows how data flows within a network, regardless of its physical design. Distances between nodes, physical interconnections, transmission rates, and/or signal types may differ between two networks, yet their topologies may be identical.

 Type of Network Topology:
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How Create simple Network

Local Network Communication made easy

Use of Network

Why use network?

Using a computer connected to a network allows us to…

• Easily share files and data
• Share resources such as printers and Internet connections
• Communicate with other network users (e-mail, instant messaging, video-conferencing, etc.)
• Store data centrally (using a file server) for ease of access and back-up
• Keep all of our settings centrally so we can use any workstation

In particular, if we use a computer connected to The Internet, we can…

• Make use of on-line services such as shopping (e-commerce) orbanking
• Get access to a huge range of information for research
• Access different forms of entertainment (games, video, etc.)
• Join on-line communities (e.g. MySpace, Facebook, etc.)

Introduction to network

What is a network?

A network is two or more computers, or other electronic devices,connected together so that they can exchange data. 

For example a network allows computers to share files, users tomessage each other, a whole room of computers to share a single printer, etc.

Network connections between computers are typically created using cables (wires). However, connections can be created using radio signals(wireless / wi-fi), telephone lines (and modems) or even, for very long distances, via satellite links.

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