Terminals
From Linux 101, The beginner's guide to all things Linux.
Terminals provide a command line interface, or console, from within the graphical environment of the X Window System.
Terminal software is included with nearly every popular Linux desktop environment.
The four most popular ones (in alphabetical order) are:
Eterm - for Enlightenment
Gnome-Terminal - for Gnome
Konsole - for KDE
Xterm - a generic terminal
Terminals provide the window environment for the shell. Usually they have options to them such as transparency, fonts, colors, and the like. The terminal will run the shell of your choice. If it helps, consider a terminal to be a container that GUI-fies the command line.
This article is a stub. You can help Linux 101 by expanding it.

