CONTENTS Introduction Origins &Early Development. Working of ISP. Protocol stacks & packets Where to begin Internet Addresses Getting Connected to INTERNET Networking Infrastructure What is Domain Name? What is Internet Explorer? Why do we use Internet? Surfing The Net Advantages of  using the internet Internet access gap in Education

Origins &Early Origins &Early DevelopmentDevelopment

1.1. Cold WarCold War origins-origins-Advanced Research Advanced Research ProjectAgency(ARPA).ProjectAgency(ARPA).

2.2. ARPANET-share ARPANET-share computer power &ideas.computer power &ideas.(1969-70s).(1969-70s).

3.3. 1980s:Internet 1980s:Internet growth-growth-

Rise of PCs;Rise of e-Rise of PCs;Rise of e-mail(1989:159Kmail(1989:159K

users, Exponential users, Exponential demand &growth in demand &growth in Internet use.Internet use.

Terminal

Terminal

Terminal

PC

Hub

Switch

Branch Office

Mobile UsersRouter

ISP

LinePC

PC

Terminal server

Printer

Web Server

R

E

T

H

E

R

N

E

T

leas

ed

NET

Unix SystemDial-Up

PCINTERNET

Corporate LAN

ISDN Connection

Dial-up

Protocol Stacks & packets

Protocol Layers

Application

Protocol Layer(FTP,SMTP)

Transport layer(TCP,IP)

Network Layer

Hardware Layer

Where to begin Internet Addresses Because the Internet is the global network of

computers. Each computer connected to the Internet must have a unique address(IP address)

INTERNETINTERNET

Your computer1.2.3.4 Another computer 5.6.7.8

Getting Connected to Getting Connected to INTERNETINTERNET

We need a with ,a We need a with ,a

Connection from an INTERNET SERVICE Connection from an INTERNET SERVICE PROVIDER(ISP).PROVIDER(ISP).

PC Modem Telephone

It is an organization which provides Internet ConnectivityFor a charge

MTNLVSNL DISHNETSatyam Online

Networking Infrastructure

Domain Name

Genric Domain Country Domain Name

Inverse Domain Name

1. .com

2. .edu

3. .mil

4. .gov

5. .org

6. .net

1. AU

2. CA

3. DE

4. US

5. IN

6. JP

ARPA

In-addr

132

34

41

121

121.45.3

4.132

Root Level

In.addr.arpa

What is Internet Explorer?

Internet Explorer is a Web browser from Microsoft that enables you to –

1. Access the Wealth of Information&Network applications on corporate Internet.

2. You can easily access information from variety of sources, from the latest websites to legacy corporate database.

Why do we use internetSharing information on any topic

E-mail and chatting.

ENTERTAINMENT-for listening Music, Jokes etc…

Education-For remote learning.

In buisness-Eg Advertising & Selling products.

Surfing the Net or Internet simply means viewing multiple Web sites either

by typing in a URL or clicking on hyperlinks.

Downloading-means to transfer a file to your computer from elsewhere.

Uploading-means to transfer a file from your computer.

Advantages Of  Using The Internet

Global Audience

Relatively Inexpensive

Operates 24hours,aday& a week.

Provide Technical Support

Create Online Discussion Forums

73.1

34.328.5

24.319

13.810.8 8.4

Bibliography

www.google.com Book PC Software-B.C.A 1ST year Sir.Jitender Gehlot

Presented by-:Pooja Goswami B.C.A 1st Year

Thank you for listening today,

I hope you found it useful and interesting.