title: what is intel x86 atom system image in android sdk manager?
body: <p>I am new to Android development. I am setting up development environment. 
  So my question is, what is Intel x86 atom system image in Android SDK manager? 
  Should i install it or not?
  The option is present in API level 15 &amp; 16 but not in 17.</p>
  
  <p>Thanks.</p>