Basic Definitions

Let us start out with some basic definitions.

LAN & WAN: * What is a LAN
* What is a WAN
The Internet: * What is the Internet
* What is the World Wide Web
* What is Hypertext and Hypermedia
* What is the Intranet
* What is the Extranet
Protocols: * What is a Protocol
* What is a Application Protocol
* What is TCP/IP
* What is UDP
Address Space: * What is an Address
* What is a Domain
* What is a Domain Name
* What is a Top Level Domain
* What is a Host

Browsers: * What is a Browser
* Browser Types
* Browser Compatibility
* What is a Helper
* What is a Plug-In
URL: * Uniform Resource Locator
* Uniform Resource Locator Parts
* Major Services of the Internet
Ports & Sockets: * What is a Port
* What is a Well Known Port
* What is an Ephemeral Port
* What is a Socket

Those are a lot of questions. So let us take them one at a time. What is a LAN?

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