SharePoint 2013 is available in three on-premise versions in addition to packages hosted by Microsoft. This course will focus on the on-premise versions of SharePoint. Of the on-premise versions there is the free version, SharePoint Foundation, and two versions that require the purchase of licenses, Standard and Enterprise. The differences between the three versions are based on the features they offer.
SharePoint Foundation's features are, as the name implies, core features in both Standard and Enterprise. Standard has additional features added to what is provided by Foundation. Enterprise has additional feature added to both the features from Standard and Foundation.
The scope of this course is for the "end user" and most of the features that fall within that scope come with Foundation.