Chapter 16 - World Wide Web

The Web

an infrastructure of information combined, and the network software used to access it

Web Page

a document that contains or references various kinds of data

Links

connections between one home page and another

Website

 a collection of related web pages

Web Browser

a software tool that retrieves and displays web pages (Google Chrome)

Uniform Resource Locator (URL)

A standard way of specifying the location of a Web page, containing the hostname, “/”, and a file

Search Engine

a website that helps you find other websites

Blog or Weblog

an online journal or newsletter that is frequently updated and intended for public consumption

Cookie

a small text file that a web server stores on your local computer’s hard disk

Web analytics

• Collection and analysis of data regarding website usage

• Typically used by website owners to track the number and behavior of users visiting their sites

Hypertext Markup Language (HTML)

the language used to create or build a web page

Markup Language

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

Tag

the syntactic element in a markup language that annotate the information in a document

HTML 5

current version of the HTML standard

• Released in 2012

• Supported by all major browsers

Attribute

part of a tag that provides additional information about the element

Form

attribute-name=value

Cascading

styles can be specified at multiple levels and overridden at lower levels as needed

Java Applet

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

Java Scriplet

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

encased in special tags beginning with <1% and ending in %>

Java Server Page

a web page that has a JSP scriptlet interwoven among the HTML content

Extensible Markup Language (XML)

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

  • describes a documents meaning

Metalanguage

a language for talking about, or defining, other languages

Extensible Stylesheet Language (XSL)

 a language for defining transformations from XML documents to other output formats

Social Networks

an online service that allows people with shared interest to communicate and interact