/learn/learning-center/b/blog/posts/how-to-build-and-work-with-logic-gates-using-ms-excel-4I really thought I was done with this. What else can I make? Now I know: (7) - See How Computers Add Numbers In One Lesson - YouTube That should be a link. If not at least you have a title. I want to build it. I think I'll st...en-USTelligent Community 12