Actually, I have been around to see version control systems go in and out of fashion. It may be git today, a later fad tomorrow. However, if there was any version control system that I assumed would be shipped with a unix-system, it would have been the one (ie. SCCS) that is actually mentioned in the specification.
So, may I assume that a helpful answer to my question would have been "SCCS is no longer shipped with Mac OS X", or is it still there, just hidden in some place that I cannot seem to find? I can easily find git and use it when I want and need to. I could also easily install my own set of SCCS utilities, but if they are already available, i would rather stick to those.