What are CAM systems and how do they differ from CAD systems?

Question

CAD/CAM

Often in the text there is a bunch of "CAD / CAM-systems". Maybe one is part of the other?

Answer 1

English Computer-Aided Design - Computer-Aided Design (CAD)
eng. Computer-Aided Manufacturing - an automated system, or a module of an automated system, designed to prepare control programs for CNC machines
. CAM is almost always a part of CAD - they are now rare in the form of independent systems.