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The Internet An Overview.

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Presentation on theme: "The Internet An Overview."— Presentation transcript:

1 The Internet An Overview

2 Topics What is the Internet When did the Internet start
Why did the Internet start Some Internet applications The World Wide Web Search Engines Ethics

3 What is the Internet The Internet is a collection of computer networks that have agreed to interact with one another. This is accomplished with the use of a standard communication protocol, TCP/IP

4 When did the Internet start
The Internet started in 1969 as a development of the ARPANET project The TCP/IP protocol was agreed upon in 1983

5 Why did the Internet start
The Internet was to be a global network of information centers that would allow for the sharing of information

6 Some Internet applications
Allows for the sending of electronic mail telnet Allows one to log onto a computer system vis a network connection ftp Allows one to transfer files across a network

7 The main components of the WWW are browsers and servers
The World Wide Web Tim Berners-Lee invented the World Wide Web in 1989 as a method to easily find and retrieve information on the Internet The main components of the WWW are browsers and servers One uses a browser to request a web page from a web server The web server that is contacted will, if it can, find the requested page and send it to the browser requesting it

8 Search Engines A search engine is a program that searches for information on the World Wide Web and returns links to web pages holding the requested information. Search engines use a program to follow the links that make up the WWW and index them in a large database. The database is then searched when a request is given. Google is currently the largest and most used search engine

9 Ethics Privacy Misuse Crime


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