title: Have I installed Xcode correctly?
body: <p>After years of custom in-house programming on AIX and Linux, I am completely new to OS X so I have a few ultra-naive questions that I am sure any Mac developer can answer.</p>
  
  <p>I downloaded Xcode without specifying where it should be installed. The .dmg file showed up in my ~/Downloads directory, a disk image icon appeared on my desktop, and an ejectable device named Xcode showed up in Finder. I opened the desktop icon, saw an icon named Xcode.app, and dragged it to the dock. Clicking that opens the Xcode IDE and I can write and run programs there. Everything looks good so far but I just get the feeling that I have not installed Xcode in a standard way because:
   1. The root directory of the machine does not contain the /Developer directory that I was expecting from what I have read.
   2. There is no mention of Xcode in /Applications where I see OpenOffice.org.app, Safari.app, TextEdit.app, etc.
   3. After a fresh login, when I start Xcode from the dock, an Xcode disk icon appears on the desktop, a folder containing nothing but Xcode.app gets opened, Xcode starts.</p>
  
  <p>Question 1: Am I running Xcode straight out of its downloaded image?</p>
  
  <p>Question 2: If it did get installed, where did it get extracted to?</p>
  
  <p>Question 3: If not, how do I install it properly.</p>
  
  <p>Question 4: How do I get Xcode to show up as an Application or in Launchpad?</p>
  
  <p>Thank you,</p>
  
  <p>Brian</p>