...application.
X applications use an environment variable named DISPLAY to determine which X server to use. If you have trouble starting X clients on other machines (e.g. the application seems to start but you don't see and windows) check with your local administrator to make sure your .login and other startup files are configured properly

...Foundation.
This is the same group that produced GNU emacs, the GNU C compiler(gcc), and several other widely used, high quality Unix programs. Use Archie () to find an anonymous FTP site for these other programs and for information about the foundation and its goals.

...LaTeX
Another way of formatting documents on a computer is the ``what you see is what you get'' (WHYSIWYG, pronounced ``whizzy-wig") type of text processor, such as Microsoft Word or FrameMaker. In these systems authors make changes directly to the document and the results can be seen immediately.