mt2

• World Wide Web (WWW)


  The leading information retrieval service of the internet
• World Wide Web (WWW)


  • Gives user access to a vast array of documents that are connected to each other by means of hyperlinks
• Hyperlinks


  Electronic connections that link related pieces of information to allow easy access for the user
• Types of hyperlinks

  • Hypertext
  • Hypermedia
• Hypertext


  Allows the user to select a word from text and thereby access other documents that contain additional information pertaining to that word
• Hypermedia


  Hyperlink involving media, documents feature links to images, sounds, animations, and movies
• World Wide Web (WWW)

  • Begun in 1989 by Tim Berners-Lee and his colleagues at CERN
  • They created HyperText Transfer Protocol (http), which standardized communication between servers and clients
• Elements of the web


  • Webpage
  • Website
• Webpage


  What you see through your browser by scrolling the window up and down
• Website


  Composed of a group of webpages linked together<|>Static Website - contains information that does not change<|>Dynamic Website - can contain client side scripting or server side scripting to generate changing content
• Web browser


  Software application used to enable computer users to locate and access web pages<|>Translates the basic HTML (Hypertext Mark Up Language) code that allows us to see images, text, videos, and listen to audios on websites, along with hyperlinks that let us travel to different web pages
• Parts of a URL

  • Protocol
  • Server name
  • Resource ID
• Protocol


  Shown at the beginning of the URL before the double slash (//)
• Server name

  Between the double slash (//) and the first single slash (/)
• Resource ID


  Everything after the first single slash (/)
• IP address


  Takes the form of a dotted-quad number, such as 128.175.13.92<|>No other computer/server on the same network or on the internet can have the same IP address at the same time