1. Data Communication
Designed by:
Mrs. Brown

2. Objectives
1.  Define the term ‘Data Communication’ 2.  Describe at least six general  uses of the internet 3.  Create a glossary of common Internet terminologies:
4. Identify at least THREE Internet Service Providers in
Jamaica/Montego Bay.
Give examples of popular web browsers
Give examples of popular search engine
Give examples of popular client .

3. Data Communication
Data communications refers to the transmission of this digital data between two or more computers and a computer network or data network is a telecommunications network that allows computers to exchange data.

4. The Internet
The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link billions of devices worldwide.

5. Who owns the Internet?
No one actually owns the Internet, and no single person or organization controls the Internet in its entirety.

6. File access and transfer
Uses of the Internet
Terminal Emulation
Communication
Mailing lists
Newsgroups
Chat
Facsimile machine
Video Conferencing
Social networking
Internet
World
Wide
Web
File access and transfer

7. Major Applications of the Internet
WWW

8.
is the most popular and widely used service on the Internet today.
It allows you to communicate with friends, family and businesses all over the world.

9. What do you need to have in order to send an email?

10. E-mail Requirements cont’d
For message to be sent and received, you must have a:
Mail client: This is the program that enables
you to read and compose messages
and send to and access from
the server.
Popular mail clients include: Outlook, Hotmail,
Gmail and Yahoo mail.

11. Address
An address consists of two parts. The part before sign (local part) identifies the name of a mailbox. This is often the username of the recipient, e.g., jsmith. The part after symbol is a domain name that represents the administrative realm for the mail box. Example,
Click image to watch video, demonstrating how to how to create a Gmail account

12. The web consists of hypertext and hypermedia documents.
World Wide Web
(WWW)
The World Wide Web is a part of the Internet. Some people believe they are one and same, but this is not so.
The web consists of hypertext and hypermedia documents.

13. Web Browsers
To surf the web to access different web pages or websites, you need a web browser.
Popular web browsers include:
Mozilla Firefox
Internet Explorer
Opera
Google Chrome
Safari

14. Question A B E D C Identify the web browsers labelled A-E. Opera
Internet Explorer
Mozilla Firefox E D C
Safari
Google Chrome
Reveal Answer

15. Finding Information on the Web:
You can retrieve information on the web in two main ways:
By typing in the address of
the web page (commonly known as URL)
into your web browser.
By using one of the many search engine. A search
engine is a website that allows users to find information
quickly and easily. Popular search engines include
Google, MSN, Yippee, Bing, Yahoo search
See parts of a URL

16. What is a Search Engine?
A Search Engine is a tool to help you find information on the World Wide Web.

17. The ‘Search Engine’ Song!
A search engine is a very good thing, That we all can use. To search for information and get clarification, You can use any engine you choose You can use Google, ASK.com, Bing and even Yahoo! We__ have a lot more __than these four. It’s time to search and have fun!

18. I think the Internet is very useful. What about you?
You Search!!!
I think the Internet is very useful. What about you?

19. Home
Video
Song
Begin Quiz
QUIZZY

20. 1. A tool that that helps you find information on the world wide web is called a
Web Searcher
Search Engine
Internet Explorer

21. 2. All of the following are Search Engines EXCEPT
Google Chrome
Yahoo!
Bing

22. 3. What is the World Wide Web?
A network of wires join together all of the computers in the world.
A wireless satellite
c. All of the websites in the world, joined by links

23. 4. A hyperlink is a link to another part of the page or another website
True
False

24. Back to Question
You are correct!!!

25. Back to Question
Sorry, please try
again