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Glossary

This is an alphabetical list of frequently used terms.

4

404 error Page Not Found

This is an error message received when you try to access a web page that either doesn't exist or is unavailable at the address you gave.

A

Apache

An open source web server for Unix, Linux and Solaris platforms.

C

Cache

A web browser feature which stores copies of web pages on a hard disk.

Information from a web server, stored on your computer by your web browser.

F

Flash

Originally a vector-based multimedia format developed by Macromedia/Adobe for use on the web.
It's now capable of using a variety of encoded data to show video as well as vector formats.
Flash video is the default method used to show YouTube videos.

FTP (File Transfer Protocol)

One of the most common methods for sending files between two computers.
A common method for transfering files to and from a web server.

H

HTML

Hyper Text Markup Language
Controlled by the W3 consortium, this is the standard method and language used in writing a website.

Link to the W3 consortium

HTTP (Hyper Text Transfer Protocol)

The default method for transferring data from a website.
Uses TCP port 80.

J

JavaScript

The most popular scripting language on the internet, developed by Netscape.

L

Linux

Open source computer operating system based on Unix.

P

Page hits

The number of times a web page has been visited by a user.

Proxy server

An Internet server dedicated to improve Internet performance.
Also used in intranets to speed up and monitor web usage.

S

SMTP (Simple Mail Transfer Protocol)

A standard communication protocol for sending e-mail messages between computers.