We used Computer Organization and Design in college. Great book, did well in the class, felt I had a grasp of the material. But man, 6 months out and I retain

We used Computer Organization and Design in college. Great book, did well in the class, felt I had a grasp of the material. But man, 6 months out and I retained nearly nothing. It's just so esoteric and not very relevant to my every day schoolwork(then) and career(now) that it's slowly seeped out of my brain.