1. Retrieving compound pages
Skills: none
IT concepts: multi-object pages
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

2. Where does this topic fit?
Internet concepts
Applications
Technology
Implications
Internet skills
Application development
Content creation

3. Retrieving a simple Web page
request
page
Server
Client
Establish a temporary connection between the client and server (dotted line)
Client sends the request to the server
The server returns the requested page or an error message
The client displays whatever the server returns
Disconnect

5. www.ford.com is an initial page plus 74 objects

6. Embedded objects like
Videos
JavaScript programs
Images

7. List of objects on www.ford.com
. . .

8. Page from a server at
CSUDH
JavaScript program that is included on the page
Image from the Creative Commons server

9. The status bar changes as the objects load

10. Browswers may be extended
Browsers have the ability to display objects like common image formats
Browsers have the ability to execute JavaScript programs
You must install an extension for some objects – for example a Flash video

11. What if a required extension is not installed?
click to
download

12. In this case, Apple says “no”
But, it is generally not a problem

13. Next generation (HTML 5) browsers will have built in capability for video, audio streaming, and interactive graphics.

14. Retrieving compound pages
Skills: none
IT concepts: multi-object pages
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.