I'm getting the hang of this, I believe.

I like this..

(From Jurassic Park) A custom system with millions of
lines of code controlling a multimillion dollar theme
park can be operated by a 13 year old who has seen a
Unix system before. Seeing an operating system means you
know how to run any application on that system, even custom apps.
    What OS was it really running?
           (1) "These are super computers".  A CrayOS?
           (2) "Quicktime movie, Apple logo, trash can."  MacOS?
           (3) "Reboot. System ready. C:\"  DOS?
           (4) "Hey, this is Unix.  I know this"  Unix?
The computers in Jurassic Park were Cray supercomputers running
the MacOS as a graphical shell of DOS all layered on top of a
Unix base.

Its from here -  http://nand.net/~demaria/hollywood.txt