learning about networks

Yesturday I downloaded a ppt about Computer Networks. The power point compliments the book that I will use next year at Virginia Tech. The material in this power point seems basic and not too difficult to comprehend. The only problem is getting the concepts to stick to my memory before I forget ! Maybe that is why repetition is very important when learning new concepts. I am still on Chapter 1, FOR OBVIOUS REASONS, but I am learning a lot! I feel that I should have taken at least one network course while I at San Jose State, but I never envisioned myself working as a Network engineer. Maybe if we all had a crystal ball to see the future, we will all be successful and rich! But being able to predict the future is black magic !