What is the difference between a node and a content type in Drupal?

Node and content type are arguably the two most common concepts that we hear when starting to learn Drupal. Sometimes they are used interchangeably, but they represent different concepts. Let’s learn the difference and how they relate to one another. We are going to learn attributes that all nodes share, how content types can provide default values, and how content types serves as templates to collect different kinds of information.