Konsole is an X terminal emulator which provides a command-line interface (CLI) while using the graphical K Desktop Environment. Konsole helps to better organize the user's desktop by containing multiple sessions in a single window (a less cluttered desktop).
Its advanced features include a simple configuration and the ability to use multiple terminal shells in a single window.
Using Konsole, a user can open:
Linux console sessions
Midnight Commander file manager sessions
Shell sessions
Root console sessions
These sessions can be renamed to help you keep track of all your shells, or signaled (STOP, CONT, HUP, INT, TERM, KILL).
For more control over Konsole, a user can:
hide/show the menubar, toolbar and/or frame
select the size of a Konsole window, fonts, color schemes, and key mapping
change location of the scrollbar or hide the scrollbar
All chosen options can be made the default for forthcoming sessions by saving them.
For those with a deep interest in the taxonomy of free X terminals, there are two others of this kind: xterm, the original, written even before X itself (a month or two), and xvt, a lightweight xterm clone, on which most other currently available derivatives (notably eterm) are based.
After a decade, Konsole is the first rewrite from the ground up. While xterm has definitely been hacked to death (its README starts with the words "Abandon All Hope, Ye Who Enter Here"), Konsole offers a fresh start using contemporary technologies and understanding of X.