We're going to be implementing Sharepoint 2013 and we have a need to include calendars on the sites. Our current line of thinking is that we'll need to create exchange mailboxes and calendars for each site. I'm trying to find out if Sharepoint 2013 has it's own separate calendaring options and what it's benefits and limitations are when compared to integrated exchange calendars.
In my search all I could find were how-to's for users to use calendars and exchange integration steps. If anyone knows of a good technet article or can share personal experience which addresses this I'd greatly appreciate it. My exact questions are this:
Does Sharepoint 2013 have its own calendaring system or does it rely on Exchange for calendars? If Sharepoint has its own, how does it compare to an Exchange 2010 calendar?