DITEC - Expose yourself to Internet & E-mail
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Transcript of DITEC - Expose yourself to Internet & E-mail
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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.
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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
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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!
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What is Internet?
A computer connected to a internet is know as a Host
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What is Internet?
Once you are connected to the internet, you can communicate and share
Information with each other.
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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.
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Facts about Internet…
Internet users in 2012 as a percentage of a country's population
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Facts about Internet…
Mobile broadband Internet subscriptions in 2012
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Facts about Internet…
Website content languages
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Facts about Internet…
Internet censorship by country
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Facts about Internet…
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What are the services on Internet?
• World Wide Web (www)• Email• FTP• Telnet• News Groups
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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
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How to browse Internet?
Learning…Browsing internet using a web browser
softwareSearching information
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What is Email?
Electronic Mail is an another service on the internet
Electronic Mail is a messaging service
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How to Use E-Mail?
Learning…How to get an E-Mail AccountHow to use an E-Mail Account
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Getting an Internet Connection
There are several internet service providers in Sri Lanka
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Security Concerns on Internet
Virus Attacks!
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Security Concerns on Internet
Hacker Attacks!
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Security Concerns on Internet
Spyware!
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Security Concerns on Internet
Spam!
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Privacy on Internet
Know what you share with whomKnow the genuine websitesUse strong passwords
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The End
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