You know the theme, but you have to

[ddthj]

What I meant by my earlier post is that while RCA ALU's are still good for learning the basics, in trial there are a lot of times where the students are not tested on the basics, only by the thing they built.

i still teach RCA ALU's first, for the basics, but now I've started to follow up with an intro to ICA or Registers since students typically are never taught either of them.