I went to university in Pennsylvania. At least when I was going to school co-ops were time you spent working for a company for which you'd receive some kind of

I went to university in Pennsylvania. At least when I was going to school co-ops were time you spent working for a company for which you'd receive some kind of credit or fulfill some degree requirement. Internships generally didn't have any connection to the school and were only for the purpose of gaining experience and developing your career.