DITEC - Expose yourself to Internet & E-mail

Diploma in Information Technology

Module V: Expose yourself to Internet & E-mail

By: Rasan SamarasingheEsoft Computer Studies (pvt) Ltd.No 68/1, First Floor, Main Street, Pallegama, Embilipitiya.

Content

• What is Internet?• History of the Internet• Facts about Internet…• What are the services on Internet?• What is WWW?• How to browse Internet?• What is Email?• How to use Email?• Getting an Internet Connection• Security Concerns on Internet• Privacy on Internet

What is Internet?

The Internet is a global network connecting millions of computers. More

than 100 countries are linked into exchanges of data, news and opinions!

What is Internet?

A computer connected to a internet is know as a Host

What is Internet?

Once you are connected to the internet, you can communicate and share

Information with each other.

History of the InternetYear Milestone

1958 Advanced Research Projects Agency (ARPA) was founded.

1969 ARPANET was born It connected four universities.

1972 First ARPANET international connections to England and Norway.First basic e-mail programs written by Ray Tomlinson for ARPANET

1983 The TCP/IP protocol was introduced.

1984 domain name server (DNS) created. .edu, .gov, .com, .mil, .org, .net, and .int created.

1986 5000 hosts on ARPANET/Internet.

1989 100,000 hosts on Internet.

1990 ARPANET ends. Tim Berners-Lee creates the World Wide Web.

2000 20,000,000 websites on the Internet.

2006 There are an estimated 92 million Web sites online .

2007 1.114 billion people use the Internet according to Internet World Stats.

Facts about Internet…

Internet users in 2012 as a percentage of a country's population

Facts about Internet…

Mobile broadband Internet subscriptions in 2012

Facts about Internet…

Website content languages

Facts about Internet…

Internet censorship by country

Facts about Internet…

What are the services on Internet?

• World Wide Web (www)• Email• FTP• Telnet• News Groups

What is WWW?

www is a service on the internetwww allowing users to view information on a

remote computer called web serverwww can be know as a collection of web

pages

How to browse Internet?

Learning…Browsing internet using a web browser

softwareSearching information

What is Email?

Electronic Mail is an another service on the internet

Electronic Mail is a messaging service

How to Use E-Mail?

Learning…How to get an E-Mail AccountHow to use an E-Mail Account

Getting an Internet Connection

There are several internet service providers in Sri Lanka

Security Concerns on Internet

Virus Attacks!

Security Concerns on Internet

Hacker Attacks!

Security Concerns on Internet

Spyware!

Security Concerns on Internet

Spam!

Privacy on Internet

Know what you share with whomKnow the genuine websitesUse strong passwords

The End

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