Are we creating objects or classes?

Sorry to ask this but I really want to understand Ember from the basics up.

Seems that I’m getting confused between classes and objects - seems that the ember method .extend() is extending classes - and example code seems to extend lots of classes.

Are the objects being instantiated in memory - and should I be able to see them in the Chrome Ember inspector? Is there any convention RE naming of classes and objects.

So’k.

I’m from a non-JS background so I’m not used to prototype based languages. This is an explanation: