If you’ve been following along the last few days, you saw us highlight plenty of Ultrabook deals for those looking to snag a machine on the cheap for Black Friday or Cyber Monday. The deals came in many shapes and sizes and often spanned the gap between first generation (Sandy Bride) and second generation (Ivy Bridge) Ultrabooks. If you haven’t been following the Ultrabook space closely, as we have, you might be confused about the difference. This article aims to clear that up and tell you how to identify one from the other.