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World
Wide
Web |
"A hypertext-based, distributed information system
created by researchers at CERN in Switzerland."
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Hypertext |
"Text which is not constrained to be linear.
Text which contains links to other texts."
HyperMedia is
"hypertext which is not constrained to be text.
It can include graphics, video and sound."
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Hyperlinks
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"A relationship between two anchors, called the head and the tail.
The link goes from the tail to the head.
The head and tail are also known as destination and source, respectively."
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Web Browser |
"A program which allows a person to read hypertext.
The browser gives some means of viewing the contents of nodes ,
and of navigating from one node to another. "
Microsoft Internet Explorer
Netscape Navigator
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Node |
"A unit of information.
For user's benefits, we use the term 'document'
as this is the nearest term outside the hypertext world."
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Web Page |
A document on the World Wide Web.
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Web Server |
"Provides a service to another, known as the client.
In a hypertext system, a server will provide hypertext information to a browser . "
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Host |
A computer system that has the hardware, software, and communications lines required to connect to the Internet.
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URL |
Uniform
Resource
Locator
"Short strings that identify resources in the web: documents, images, downloadable files, services, electronic mailboxes, and other resources."
The address of a document on the World Wide Web.
Has a specific syntax defined by
RFC 1738
Indicates what protocol to use, and
Specifies the IP address or the domain name of the web server [host].
The path tells the host the directory and name of the document to retrieve;
and if omitted, the host will retrieve the "Home Page" for the system.
http://DomainName/path
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http |
HyperText
Transfer
Protocol
"The Internet protocol specifically designed for use with the World Wide Web."
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Domain Name |
Used to identify the Web Site.
Identifies the Type of Site:
| .com | Commercial organizations |
| .edu | Educational institutions |
| .gov | Government agencies |
| .mil | Military agencies |
| .net | Internet Service |
| .org | Nonprofit organizations |
www.latimes.com
www.si.edu
www.whitehouse.gov
www.blueangels.navy.mil
www.mptv.net
www.etext.org
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Home Page |
The first document users see when they enter a Web Site.
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