quoting AWS:
AWS has the concept of a Region, which is a physical location around the world where we cluster data centers. We call each group of logical data centers an Availability Zone. Each AWS Region consists of multiple, isolated, and physically separate AZs within a geographic area.
I'm confused by the meaning of "logical data centers" here: if AZ are physically separated data centers, I would assume the ressources are physical too, wouldn't be more appropriate to say "physical data centers"? or maybe am I wrong on the definition of logical here ?