Tech Stuff : Computer Networking

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Computer Networks and Devices


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• Networking Systems



# What is Networking ?

The Networking is the process in which we are connected two or more than two devices are held together through the Internet, with the help of the mobile phone,computer or a laptop.

Computer Networks



A network is a collection of interlinked computers means of a communication system.

The network facilitate resources sharing, increased reliability, reduced costs, and increased and fast communication.

On the basis of networks can be classified into :

1. LAN (LOCAL AREA NETWORK)

2. MAN (METROPOLITAN AREA NETWORK)

3. WAN (WIDE AREA NETWORK)

# LAN (LOCAL AREA NETWORK)



The small computer networks that are confined to a localised area. This is basically used in house, building, school or office purpose only.

for example:- Ethernet, WiFi.

# MAN (METROPOLITAN AREA NETWORK)



This is basically used in to connecting multiple-building, or in a city .

for example:- Cable TV Network.

# WAN (WIDE AREA NETWORK)



A WAN is a group of computers that are speprated by large distance and tied together.This is basically used in to connect multiple-city or a country to another country.

for example:- Internet.

Components of Network


• A Client computer (or a client) is a computer or other device on the other device on the network that requests and utilizes network resources.

• A Server is a computer on network, dedicated to processing client requests.

• In a peer-to-peer network, all computerd are equal; each can double up as a client as well as a non-dedicated server.

• A client/server network has computer(s) designated as server(s) and these are dedicated servers. Clients do own job and the servers serve the requests of the clients.

Devices


# Hub



A Hub is a hardware device used to connect several computers together. Hubs can be either active hubs or passive hubs.

# Switch



A Switch is a device that is used to segment networks into different sub-networks called subnets or LAN segment.

# Bridge



A Bridge is a device that links two networks together .

# Router



A Router is a device that works like a bridge but can handle different protocols.

# Gateway



A Gateway is a device that connects disimilar networks.


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