The difference between CAD and CAM is that CAD software is directed at product design while CAM software is: A. concerned with production and control of tool design B. concerned with management programs C. designed for communications D. specifically for PC-board design E. None of the above

The correct answer is: A. concerned with production and control of tool design.

CAD (Computer-Aided Design) software is used to create 2D or 3D models of products. CAM (Computer-Aided Manufacturing) software is used to control the manufacturing process of a product. CAM software takes the 3D model created by CAD software and uses it to generate the tool paths that a machine tool will follow to create the product.

Option B is incorrect because CAM software is not concerned with management programs. Option C is incorrect because CAM software is not designed for communications. Option D is incorrect because CAM software is not specifically for PC-board design.