That question was closed **two years ago** with a then default  close reason:

> "Questions must be relevant to professional system administration. Server Fault is dedicated to professional system and network administrators. End user and enthusiast questions are off-topic (contact your system administrator or hire a professional to help you out). 

Your question appears to me as indeed one  an end-user or enthusiast would ask because it reads as more about idle curiosity than a professional investigating an actual problem. With current Q&A standards I would still expect your question to end up closed by the community for more or less the same reason.

We now use a different default close reason that actually suggests asking instead on [Superuser](http://superuser.com/) which caters to site computer enthusiasts and power users.