However, life being what it is, we sometimes have to choose between the lesser of two evils. So, if you're considering a 401(k) loan, here's what you need to know and the due diligence you need to undertake. We need to spend some time in discussion of combinational logic, which is the part of sequential logic most of the time. It is well known that logic decisions can be made with the help of universal gates are NAND, NOR. These gates will generate the output depending on the input values. Here are the logic gates we are discussing below. That’s what this is: a process, discovery, exploration, transformation. Comments will not be made public, and will only be used to help us improve our lessons.