1. Introduction to the Internet and World Wide Web

2. The Internet A network of networks
Began in 1969 as ARPAnet (Advanced Research Projects Agency)
No central authority and thus impossible to state the precise size
The Internet is not free just because you may not pay for it

3. The World Wide Web
A subset of the Internet consisting of all computers with hypertext or hypermedia documents
These documents contain references (links) to other documents which may be on a different computer anywhere in the world
Began in 1991 at the European Particle Physics Laboratory (CERN) in Switzerland

4. A Client/Server Model
A server (Web server or Web site) is any computer that stores then downloads hypermedia documents
A client is any computer that requests then displays hypermedia documents
Every client must be able to display every document from every server and does so through a browser (e.g., Netscape or Internet Explorer)

5. Acronyms Abound
HTTP - HyperText Transfer Protocol is used to transmit hypermedia documents
HTTPS - A secure protocol for confidential transactions (e.g., credit cards)
HTML - HyperText Markup Language is the language used to write hypermedia documents
TCP/IP - Transmission Control Protocol/ Internet Protocol - governs the flow of data across the Internet

6. URL Format
You can guess at the URL using the general form of an “
Examples:

7. My Favorite Web Page

8. Suggestions for Searching
Use the Search button on the Internet Explorer Toolbar
Try multiple search engines on one query
Be aware of logical operators - AND, OR, and NOT
Search on a concept; e.g., “first ladies” for “Eleanor Roosevelt”
Set bookmarks or favorites

9. Thank You