Difference Between Pop Rivets and Drive Rivets

What is the difference between a pop rivet and a drive rivet? Tom recently fixed a small mast for a sail boat in his fabrication shop. The mast had both pop rivets and drive rivets. Each rivet secures a simple bracket to the mast, but they are mounted in a different way.
A drive rivet fits into the hole and a pin sticks up through the middle. The pin is pushed down through the rivet and the pin then expands at the bottom to secure the rivet into the metal material.
A pop rivet has a shank that comes out the top that gets placed into the hole and then the shank gets pulled up through the hole. This causes a pin to be pulled up through the rivet. As the pin expands it eventually hits the base material. Once the pin hits the base material then the shank shears off and the rivet is secure.
Here are two examples of rivets. The rivet with the open hole is called a pop rivet and the rivet with the closed hole is called a drive rivet.
Rivets are used in many metal fabrications as a permanent fastener.