CS Chapter 16: The World Wide Web

World Wide Web

An infrastructure of distributed information combined with software that uses networks as a vehicle to exchange that information.

Web Page

A document that contains or references various kinds of data, such as text, images, graphics, and programs.

Website

A collection of related web pages, usually designed and controlled by the same person or company.

Web Browser

A software tool that retrieves and displays web pages.

Web Server

A computer that is set up to respond to web requests.

Uniform Resource Locator (URL)

A standard way of specifying the location of a web page.

Instant Messaging (IM)

A technique for sending short messages in real time.

Weblogs

A mechanism for publishing periodic articles on a website.

Cookies

Small text files of information created/updated when visiting a website and stored on the user's web browser.

Web Analytics

The collection and analysis of data regarding website usage.

Hypertext Markup Language (HTML)

The collection and analysis of data regarding website usage.

Markup Language

A language that uses tags to annotate the information in a document.

Tags

These represent the structural components of a document.

HTML5

The newest HTML standard with a streamlined tag system and support for dynamic content.

Attribute

Part of a tag that provides additional information about the element.

Java Applet

A Java program designed to be embedded into an HTML document, transferred over the Web, and executed in a browser.

JSP Scriptlet

A portion of code embedded in an HTML document designed to dynamically contribute to the content of the web page.

Extensible Markup Language (XML)

A language that allows the user to describe the content of a document.

Metalanguage

A language that is used to define other languages.

Document Type Definition (DTD)

A specification of the organization of an XML document.

Extensible Stylesheet Language (XSL)

A language for defining transformations from XML documents to other output formats.

Social Network

An online service or website designed to allow people with shared interests to interact.