GNUEmacs GNU Emacs editor (highly recommended) TeX TeX typesetting program (highly recommended) astro Astronomy software audio Audio (sound) software commercial Demos, pictures of, and patches+updates of commercial software dbms Database management systems emulations Emulation of other computers and operating systems fonts Font software gcc GNU C language compiler gcc (highly recommended) graphics Graphics software ham Ham software (radio-amateurs) icons Icon software misc Miscellaneous applications ps PostScript software