Programming language tree - www.levenez.com
GhostScript & GSView - http://www.cs.wisc.edu/~ghost/

For more reading on PostScript - try this link

Try fractals - www.mcs.vuw.ac.nz/~jfouhy/postscript/

The PostScript Tutorial Concieved and Created by Dann Ormond & Will Munn. Inspired by Mike Grady PhD. Website Design by NiftySites.com.