Internet ppt

K.L.E SOCIETY’S COLLEGE OF
EDUCATION,VIDYANAGAR, HUBBALLI.
SUBJECT : COMPUTER
SEMINAR ON : INTERNET
SUBMITTED TO : SHRI PRADEEP LAXETTI SIR.
SUBMITTED BY
:JAYASHREE.H.TALWAR

Introduction
The internet or “Net” (network of networks ) is the largest computer network in the
world that connects billions of computer users.
The word internet comes from combination between “interconnection” and
“Network”.
Network is a collection of computers and devices connected via communication
channels and transmission media allows to share resources ( hardware, software ,
data information).
The vast collection of computer networks which form and act as a single huge
networks for transport of data and messages across distances which can be
anywhere in the world.

History
 In the 1960 ARPA- Advanced Research project Agency.
1969 January 2 – started an experimental Computer Network.
 In 1982 the world internet started.
1986 – First “freenet” created in Case Western Reserve University.
Now all peoples can connect to internet and improve their life and work quality.
 The internet support various aspects in our life.

What is internet ?
The internet is the global system of interconnected computer
networks .
It uses the Internet protocol suite (TCP/IP) to communicate between
networks and devices.
It is a network of networks that consists of private, public, academic,
Business and government networks of local to global scope, linked by a
broad array of electronic, wireless and optical networking technologies.

Internet
The Internet carries a vast range of
information resources and services, such as
the inter –linked hypertext documents and
applications of the World Wide Web (www)
electronic mail , telephony and file sharing .

Internet Services
o WWW
o Webpage /Homepage
o Web Publishing
o Web browser
o Search Engine
o Protocol
o Internet protocol
o DNS
o HTTP
o URL
o HTML
o ISP
o E-mail
o Newsgroup
o Video conferencing
o FTP
o Telnet
o Forum

Tim Berners-Lee
 Father of W.w.w
 Born : 8-June-1955 ( London, United
Kingdom ).
 He is an English computer scientist best
known as inventor of the World Wide
Web

Difference b/w the web and internet.
Internet
• Collection of networks that
connect millions of businesses,
government agencies ,educational
institutions and individuals.
web
• We use to access information over
the internet.
-Different communication protocols
-Special link (hyperlink ) that enables
users to jump from one place to
another on the web.

Different Types of Web
Browsers :
 Google Chrome
 Mozilla Firebox
 Internet Explorer
 Safari
 Opera Mini
 Netscape Navigator

Web Page
 A web page is a document or resource of Information that is suitable for the World
wide web and can be accessed through a web browser and displayed on a monitor or
mobile device.
 This information is usually in HTML or XHTML format and may provide
navigation to other webpages via hypertext links.
It can contain text , graphics , audio, video and has built in connection or links to
other web documents.
A wec page has a unique address called a Uniform Resource Locator(URL).

Web Browser
 A software application for retrieving, presenting and
traversing information reloWorld Wide Web.
cate, view and sources on the It allows to navigate the web.
It can have a Graphical User Interface , meaning they can
display picture (graphics )in addition to text and other forms of
multimedia such as sound and video like Internet Exp;orer,
Mozilla Firefox, Chrome and Opera or can be text –based like
Lynx or Links.
First web browser was develop in 1991:Mosaic develop by
Marc Anddreessen.

Protocol
 A set of guidelines or rules.
Communications protocol and the rules for exchanging those messages.
 Format that agreed to transfer data between two devices.
 Hypertext Transfer Protocol (HTTP)
 Internet Protocol (IP)
File Transfer Protocol (FTP)
Simple Mail Transfer Protocol (SMTP)
Networks News File Transfer Protocol (NNTP)
Transmission Control Protocol (TCP) Normally use together with IP

Electronic Mail
A written message that is sent and received over the
Internet.
The message can be formatted and enhanced with
graphics and may also include other files as attachments.
 Like ordinary mail, email, have address.
e.g j12345@e...web .uum.edu.my
 An e-mail address identifies an e-mail box to which e-
mail messages may be delivered.
Most e-mail on the Internet uses the Simple Mail
Transfer protocol (SMTP).

Advantages of Internet
 Communication
 Research
 Education
 Financial transactions

Advantages
Communication :
 Communication is a process transmitting and
receiving symbol, data, image , text, document,
graphics etc.. By using various computer devices.
 It including the process of collecting, processing,
distributing, sharing, retrieving , transferring and
storing the information.
 Internet now being a main communication tool ,
Using videoconferencing , Internet phone,
Messenger, email etc.

Advantages
Research :
• In order to do research you need to
go through hundreds of books as
well as the references and that was
one of the most difficult jobs to do
earlier.
• Research is one such thing which has
got lots of benefit from this
evolution of internet.

Advantages
Education :
 Education is one of the best things that
the internet can provide.
 There are a number of books ,reference
books, online help centers, experts views
and other study oriented materials on the
internet that can make the learning
process very easier as well as a fun
learning experience.

Advantages
Financial Transactions :
• Financial transaction is the term which is
used when there is exchange of money.
• With the use of internet in the financial
transactions , your work has become a lot
easier.
• With the ability to do the financial
transaction easily over the internet you can
purchase or sell items so easily

Disadvantages
o Theft of personal
Information
oSpamming
oMalware Threats
o Social Isolation , Obesity
and Depression.

Disadvantages
Theft of Personal Information
 The use of Internet for banking,
social networking, or other
services often makes our personal
information vulnerable to theft.
 Unscrupulous hackers can
access our sensitive information
through unsecured connections by
planting phishing software.

Disadvantages :
Spamming
 Spamming refers to sending unwanted e-mails,
which serve no purpose and needlessly obstruct
the computer system
 Spammers usually use bots that bombard the
receiver with an endless line of advertisements.
 This can prove to be increasingly perplexing .
As it keeps getting mixed with our more
important e-mails.

Disadvantages
Malware Threats :
 One o f the most annoying
problems with the internet is the
ease with which any malware can
infect our computers.
 Virus Programs are inconspicuous
and may get activated simply by
clicking a seemingly harmless link.
 Computers connected to the
internet are extremely prone to IP
targeted virus attacks that may end
up crashing the system completely.

Disadvantages
Social Isolation ,Obesity and Depression :
 The biggest problem with having the internet is, its
ability to create rifts between the real and virtual world.
 There is an addiction for everything that pertains to
the Web and that includes excessive surfing, online
gambling, social networking and gaming addiction
 Since all problems are so deeply linked with one
another and with the internet ,it isn’t uncommon for
people to be afflicated with multiple issues.

Conclusion
On one hand make best use of internet with
careful planning and proper management ,
putting a business on internet can make it
more effective and productive.
However understanding and knowing how
the rapid changes and various complex issues
that can be encountered in getting the business
onto the net is imperative to its success.

Internet ppt

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