1. Chapter 2 Browsing the Web

2. Web Sites  What is a Home Page?  What is a Web Portal? (portal) Example: Yahoo! Lycos and MSN Typically offer? ________________________________________ __________________________________

3. Web Pages  A well-designed Web page draws viewers to items of potential interest and includes links to lead viewers to investigate other Web pages.  Usually contain the following:

4. Web Servers  Before a Web browser can display a Web page, it must first ______________________________ _____________________________.  The Web server responds by sending a copy of the page to the browser. Client-server computing – ________________________________ ________________________________

5. Web Servers con’t  Client – ______________________________ _____________________________.  Server – ______________________________ ______________________________ A server may be located in the same building, in a nearby building, or, in the case of a Web server, anywhere in the world

6. IP Address  What is an IP address? An IP address (Internet Protocol Address) ________________________________ ________________________________. It ensures that data is sent to the correct computer  An IP address consists of ____groups of numbers, each separated by periods or dots. (ex: 198.80.146.30

7. IP Addresses Con’t  Computers that are always connected to the Internet, such as Web servers or personal computers with a broadband connections, typically have a _________ or ___________ that seldom changes.  Computers that connect to the Internet via a temporary connection, such as a dial-up connection, generally are assigned to a __________ or ____________ while connected

8. Domain Names  A Domain Name is a ________________________________ Ex: course.com corresponds to the IP address 198.80.146.30  When the domain name is entered into the browser, the browser must look up the corresponding IP address by requesting the IP address from the __________________ (DNS) name server

9. Domain Name System (DNS)  The Domain Name System (DNS) consists of ___________________________________ __________________________________.  Domain names are registered like ___________  The Internet Corporation for Assigned Names and Numbers (ICANN) is the organization that ___________________________________ ___________________________________

10. Top-level Domain (TLD)  Top-level Domain (TLD) – an abbreviation that identifies the type of organization associated with the domain.edu.gov.mil.com.org.int.net.name

11. Uniform Resource Locators (URLs)  Each Web page also has its own unique address. A Uniform Resource Locator (URL) is a ______________________________  http://www.scsite.com/internet/ch2/survey.htm ProtocolDomain name Path File name