DITEC - Expose yourself to Internet & E-mail (updated)
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Transcript of DITEC - Expose yourself to Internet & E-mail (updated)
Diploma in Information Technology
Module V: Expose yourself to Internet & E-mail
Rasan SamarasingheESOFT Computer Studies (pvt) Ltd.No 68/1, Main Street, Pallegama, Embilipitiya.
Content
1. What is Internet?2. Benefits of the Internet3. History of the Internet4. Facts about Internet…5. What are the services on Internet?6. What is WWW?7. How to browse Internet?8. Web Browser Software9. Website/Page URL 10. What is Email?11. Types of Email Accounts12. Email Address13. How to use Email?14. Obtaining an Internet Connection15. Types of Internet Connections16. Security Concerns on Internet17. 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.
Benefits of the Internet
Find InformationShare InformationNewsOnline TV / SportsCommunication (Email / Chat / Video Calls)E-Commerce
History of the InternetYear Milestone
1966 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?
Practical session…
Browsing internet using a web browser software
Searching information
Web Browser Software
Microsoft Internet ExplorerMozilla FirefoxGoogle ChromeOperaNetscape Navigator
Website/Page URL
http://www.esoft.lk
Domain Name
Domain Extension
Sub Domain
Protocol (Hypertext Transfer Protocol)
How Web Browser Works - Cartoon Demonstration
What is Email?
Electronic Mail is an another service on the internet
Electronic Mail is a messaging service
Types of Email Accounts
There are two different Email Account types
Web Based Email AccountsDirect Email Accounts from an ISP
How to Use E-Mail?
Practical session…How to get an E-Mail AccountHow to use an E-Mail Account
Email Protocols
IMAP (Internet Message Access Protocol)POP3 (Post Office Protocol 3)SMTP (Simple Mail Transfer Protocol)
Obtaining an Internet Connection
There are several internet service providers in Sri Lanka
Types of Internet Connections
Dial-up ConnectionsISDN (Integrated Services Digital Network)Broadband (DSL / ADSL / Mobile)Leased LinesWi-Fi Connections
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
http://twitter.com/rasansmn