History and Code

For the whole course I think the history of computer is really hard.  The reading material are kind of messy.  For the two term tests, even though I read all of the material,  There were still a lot of questions I didn't know how to answer. I hope we can get a clear structure about what we learned, that will help me prepare the final exam  well
       
 The code that we learned is not that hard, but the textbook could not give a clear explain of all of them. And some of code have a circle structure. I do know how to solve them, but I think there must have a way to solve them faster then that.