All these courts! What's the difference?

Question

What is the difference between constitutional federal courts, legislative federal courts, and the Supreme Court?

Answer 1

Federal courts have limited jurisdiction unlike the Supreme Court. The decisions of the lower courts can be reviewed by the Supreme Court if there are valid grounds. Thus, there are different courts depending upon the jurisdiction. Lower courts can try cases with less amount involved or if the crime committed are petty ones. The higher courts try cases involving more money or if the penalty is life imprisonment or death.

Answer 2

federal
http://www.uscourts.gov/about.html

I thought the c.f.c. was a german court, so don't understand the comparsion on this one.

Supreme
http://en.wikipedia.org/wiki/Supreme_Court_of_the_United_States