what is internet || how work internet || inmportant for ccc

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what is internet || how work internet || inmportant for ccc

Internet: - is one of the most popular use of internet,

The internet provides a capability so powerful that it can be used for almost any purpose that depends on information.

Use of internet

a.We can talk any other person(chatting)

b.We can purchase and sale anything by internet.

c.We can booking railway ticket, and film ticket etc

d.We can send the mail by it.

e.We can apply online form for job.

There are mainly three types of network.

Lan :-this net work  works  in 100 meter range.

Man :-metropolitan area net work. this network works  in a city.

Wan :- wide area  net work  this network  works  in whole world.

Basics of internet Architecture

Internet is an interconnection of multiple networks.

In order to create an internet we need networking devices called routers and gateway s.

There are mainly four types layers.

A.Subnetwork layer:-all the machines connected together in a local area network reside in this layer.

B.Net work Layer:-This layer provides the functionality for communication between networks through gateways.

c. Service provide protocol layer:-this layer is responsible for the overall end to end communication of the network.

d.Application service layer:-this layer supports the interface to the user application. this layer interface to electronic mail, remote file transfer, and remote access.

Website :-A WEBSITE IS A COLLECTION OF WEB PAGES BELONGING TO A PARTICULAR PERSON .

WWW:-THE WORLD WIDE WEB IS AN INTERNET BASED GLOBLE INFORMATION SYSTEM THAT MAKES AVAILABLE MULTIMEDIA INFORMATION FROM OVER 4 MILLION COMPUTER AROUND THE WORLD.

ISP:-AN INTERNET SERVICE PROVIDER  is just like the gateway to the internet .this is provide faculty to run internet in your computer.

Main ISP in india.

Sify

Mtnl

VSNL

AIRTEL

BSNL

TATA

TYPES OF INTERNET CONNECTION:-

1.DIAL UP CONNECTION:-this is the most important types of internet connection. this connection need a modem.

2.ISDN CONNECTION :-THIS TYPES OF CONNECTION IS  A LOW TO MEDIA BANDWIDTH DIGITAL CONNECTION.

3.DSL CONNECTION:-DSL IS A HIGH BANDWIDTH digital connection .this is the new emergency internet connection similar to coaxial cable.

4.Broadband connection:- A high speed internet with at lest 256 kbps speed is termed as abroad band connection .

5.Wifi  connection :-wire less internet access, something  referred to as a hot spot is a local area network run by radio waves rather than wires.

WEB BROWSING=:-A WEB BROWSER IA A SOFTWARE PACKAGE supplied free by Microsoft corporation and many other companies that is used to view web pages .

Popular web browser:-

Netscape navigator

Microsoft internet explorer

Mozilla fire fox

ncSA Mosaic:-

Lynx

SEARCH ENGINES:-A       web search engine is to search for information on the internet.

Popular search engine

Yahoo and alta vista

Hot Bot

Web Crawler

Excite

Lycos

Magellan

Google

Bing

Khoj

Basic of e-mail:-E-mail is a method of sending messages ,voice,video, and graphics over digital communication link such as the internet any where in the world .

MODEM :-INSTALLATION OF MODEM:-

MODEM IS  a short form of modulator-demodulator .this is a internet device that convert  digital data into analog signal .that is connected telephone device .

Step 1 . Go to start menu.

Step2.Go  to settings .

Step 3.Go to control panel.

Step 4.click modem icon.

Step5 .add the modem.

Step6.install the modem.

INSTALLATION OF CONNECTION:-

STEP1.Go to Accessories menu

Step 2. dial up networking  option double  click

Step3.click on make a new connection

Step4.click next button

Step5.and insert city name std server name ,country name

Step6. click next button

Step7.click finish button.