Basic Internet Definitions

Welcome to "Basic Internet Definitions", an interactive on-line tutorial on Internet terminology.

At the bottom of most pages in each lesson you will find an [INDEX] button. You may select it, at any time, to return to this index. The button looks like this.

• Chapter 0 Welcome
  
  
• Chapter 1 Basic Definitions
  • What is a LAN
  • What is a WAN
  • What is the Internet
  • What is the World Wide Web
  • What is Hypertext and Hypermedia
  • What is the Intranet
  • What is the Extranet
  • What is a Protocol
  • What is a Application Protocol
  • What is TCP/IP
  • What is UDP
  • What is an Address
  • What is a Domain
  • What is a Domain Name
  • What is a Top Level Domain
  • What is a Host
  • What is a Browser
  • Browser Types
  • Browser Compatibility
  • What is a Helper
  • What is a Plug-In
  • Uniform Resource Locator
  • Uniform Resource Locator Parts
  • Major Services of the Internet
  • What is a Port
  • What is a Well Known Port
  • What is an Ephemeral Port
  • What is a Socket
  • Chapter 1 Review