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.

The default close reason has been updated though and now suggests asking instead on [Superuser](http://superuser.com/) which caters to computer enthusiasts and power users.