title: How can Core Data store an NSData?
body: <p>The documentation says, that core data properties can only store NSString, NSNumber and NSDate types. However, a lot of Core Data users claim Core Data could also store an NSData type. But I wasn't able to see that in the documentation, although the Xcode Data Modeler allows to choose a data type called "binary" (which seems to be NSData).</p>
  
  <p>Did I miss something? Is there a hidden place in the documentation that indeed lists NSData for binary stuff?</p>