What is CAD/CAM course. What is the benefit of doing this course? My boss has suggested me to do this from CAD

What is CAD/CAM course. What is the benefit of doing this course? My boss has suggested me to do this from CADD Centre. Is there any scope of this in the market and this course will help me to go up? I have done Simple B.A. and one of my friend told me that its a scientific field. Will it soute to me????? Will i be afford this??? plz reply soon as possible