Talk:Software Engineers Handbook/Operating Systems/Unix

It's important to realize that not all flavors of UNIX are created equal. Major flavors include AIX, HP-UX, Solaris, IRIX, and more. They typically correspond to the hardware they are used on, AIX on IBM RS6000, etc. See http://en.wikipedia.org/wiki/Unix

The practical fallout is that the "end user" will probably have a very similar experience across platforms. Programs appear to be similar, and the CDE front-end is pretty ubiquitous. A programmer or system administrator, however, will have very different experiences between the different systems.