[barking]

Logic.ly or similar are great resources to use in conjunction with Charles Petzold's Code and the Nand to Tetris book. Together they pretty much enable you to understand through doing from the simplest circuit imaginable (power, switch and lightbulb) to building a fully working computer. I know because I used them in that way and found it doable whereas a lot of the computer/programming topics discussed here are way over my head.