The xterm program is the standard terminal emulator for the X Window System. It provides DEC VT102/VT220 and Tektronix 4014 compatible terminals for programs that can't use the window system directly. If the underlying operating system supports terminal resizing capabilities (for example, the SIGWINCH signal in systems derived from 4.3bsd), xterm will use the facilities to notify programs running in the window whenever it is resized.
rxvt-unicode is a clone of the well known terminal emulator rxvt, modified to store text in Unicode and to use locale-correct input and output. It also supports mixing multiple fonts at the same time, including Xft fonts, real transparency, and an optional embedded Perl interpreter that allows you to extend your terminal easily.
x11vnc allows one to remotely view and interact with real X displays (i.e. a display corresponding to a physical monitor, keyboard, and mouse) with any VNC viewer. It is designed to be compatible with all Unix variants and Mac OS X, and depends on a small set of standard libraries. It supports SSL/TLS and VeNCrypt encryption, Unix password logins, single port access, Zeroconf, file transfer, and UltraVNC extensions. It is part of the LibVNCServer project.
Multi Gnome Terminal is an enhanced version of gnome-terminal, with many powerful new features and extensions. The most notable enhancement is the ability to run multiple terminals within the same window. Each terminal may be accessed by its "tab", through keyboard shortcuts, or menu selections. Inactive terminals provide an alert when the buffer changes by changing the color of the tab labels. Other enhancements include a toolbar, a buttonbar, flexible command options to launch new terminals, tabs, and shells from either the GUI or command line, customizable key bindings for MGT functions and other uses, font shadowing, the ability to "split" terminals so that each window can simultaneously multiple terminals, the ability to "view" or "bond" terminals with other terminals, and various other improvements.
X Northern Captain is a file manager for X Windows. XNC has the same ideology as Norton Commander but also many additional and specific functions including a Virtual File System with support for tar, zip, rar, rpm, deb, bzip2, and lha archives, FTP support, built-in xterminal, viewer for JPEG, GIF, BMP, TGA, XPM, and XBM formats, an editor, users menu, extensions association, bookmarks for frequently used directories, and more.
DIET-PC (DIskless Embedded Technology Personal Computer) is a software kit enabling IT professionals to build embedded Linux appliances based on commodity PC or Mac hardware and various commercial embedded appliances. The focus is on platform portability, OS fundamentals and developer friendliness, rather than the end-user UI. The distribution is intended primarily for desktop graphical appliances, particularly thin clients (using the X11/XDMCP, ICA, RDP, and RFB graphics protocols). Although originally a network-booting OS, DIET-PC works well with various forms of solid-state persistent storage and hence is no longer strictly "diskless". The project uses QEMU virtual machines running Debian Linux (under Windows) as self-contained development environments, and hence may also be of interest for its unusual (non-x86) QEMU accomplishments.
Viewglob is a filesystem visualization add-on for Bash and Zsh. It tracks the command line and environment of any number of interactive shells (local and remote). A graphical display follows the currently active terminal, listing the contents of directories relevant to its shell and highlighting file selections and potential name completions dynamically.
Terminal is a modern terminal emulator for the Unix/Linux desktop, primarly for the Xfce desktop environment. It was developed because Xfce needed a lightweight and easy-to-use terminal emulator that didn't require the user to install the GNOME libraries, but still provided a worthy alternative to the GNOME terminal emulator, with all the bells and whistles.