You could try grabbing a digital electronics textbook such as this one (link below). I haven't read this one specifically. http://www.amazon.com/Digital-Electr

You could try grabbing a digital electronics textbook such as this one (link below). I haven't read this one specifically. http://www.amazon.com/Digital-Electronics-Practical-Approach-8th/dp/0132435780 http://www.amazon.com/Digital-Electronics-Practical-Approach... I took some EE courses as part of a CS degree. Years later, I found that reading a textbook was a good way to re-learn it.