A career college is basically a trade school where you learn certain skills for a job. It will take around 2 years to get your certification (auto mechanics, for example) and you'll only take classes that have to do with that particular job. A community college is essentially a university that only offers a 2-year degree. So you could go into psychology, for example, and you would still have to take some general education courses.
I think community colleges only offer a 2-year degree.