Not getting your point. I understand that Unix predates Windows. The discussion was about Macs. What's the point of running Oracle on a Mac, or Sybase, or anything else. What's your point?
It will run faster
It will run more stable
It will not be subject to the registry creep that it is on the windows side
Its on a more secure platform
http://www.dba-oracle.com/oracle_tips_unix_oracle_compare.htm
Because Macs are UNIX, and therefore they have a long-standing lineage in the enterprise. As a brand Apple is only a fairly recent entry into the server market (I'm just going to forget OS 9 server), so they don't have a big marketshare yet.
What's the point of running Oracle on a Mac, or Sybase, or anything else.
It depends. With those specific examples, OS X is actually not too fast. But for serving in general, OS X does offer UNIX stability with easy adminstration, plus Apple's server hardware is quite good. They also only charge $500 for a 10-user license (W2K3 Server is $1K) and $1,000 for an unlimited user license (W2K3 Server is $3K+ for 25 users).
What's your point?
That Macs are fully enterprise-ready, both in the OS itself and the software available for it.