The "core classes" are the core curriculum that represents the foundation classes all electrical and computer engineers must take to graduate with a degree in computer engineering (CprE) or electrical engineering (EE) at Iowa State.
You are required to have at least a 2.0 GPA within your core curriculum overall in order to graduate with an engineering degree from Iowa. (This does not mean you need at least a "C" in every class.)
Specifics on core curriculum courses are in the university course catalog. These courses are indicated with an asterisk.
Computer Engineering
Electrical Engineering