For the sake of irony, I'm really hoping this image doesn't 404.
There are some words today that are synonymous with the history of computing. These words may include Linux, GNU, BSD, Mac OS X, Darwin, Solaris, System V, etc. However, what these words have got in common is that they all include, or are related to in some way, the word UNIX. Linux is word play for ‘Linus’, the Linux kernels father, and UNIX; GNU is an acronym for ‘GNU is not UNIX’; BSD and System V were the first UNIX systems; Darwin and Mac OS X are UNIX system-like operating systems and the same is so for Solaris.
Unfortunately, people may know that the words are related to but what they don’t know is how the words are related. The current standard of the UNIX naming system are almost as confusing as the court battles that have been fought over it. The lines between what is and what is not UNIX is no longer over who made the system or what the system performs like but by certification.
