All of my notes come out of a book; either that or it's math or molecular based stuff, so no computers there.
When it comes out of the book, I read, underline the important things, and make 1 pass that way.
I then go back, and type up all of the important things I marked before. This is the 2nd pass over the information that I can look over and I'm typing it.
I then print the notes, and study those notes. Then before the exam, I go through the book again and use my notes as a tack on study guide.
This is HIGHLY dependent on how much you retain and mark as being "important"; I have 18 pages of typed notes for one chapter in Microbio; of course, pictures and things like that cna be looked over in the original text.
Very time consuming but brings amazing results; mainly because you'll always have sheets of printed paper with the GOOD information with you; this helps tremendously to help you focus on what you NEED to focus on without glazing through and flipping page after page while being confused and worry about what's on the test.