Never-mind about my off-the-wall questions. Just because of "jails", all of the pieces I picked up over time has finally kick-in. Spring semester is now OVER! ... and I finally read this part of the handbook in its entirety. Now I understand most of what I been missing and the fun is about to begin. I actually learn more about programming ans OS's on-line than I did in the class room during the pass three years.
Have a nice day.
http://www.freebsd.org/doc/handbook/...plication.html
Most is still out-dated but it's loud and CLEARER and is fun to read.