When I was a kid my dad made me a little blinking "Christmas tree" out of a "cone" from a pine and some little electronics and leds. When last year I saw the nice blinky presents I got together for free when odering from local hobby electric shop I though the next Christmas will be the perfect time for making from that circuit what my dad once did for me as a present for my girlfriend.
Then I thought why not write a tutorial about it so others can build - maybe even foreign people who did not see the Hungarian tutorial for it of course?
Once my high-school friend asked "how a bunch of bytes can mean something?" and he wanted to have a clue on how a computer "magically works".
Back then I already knew it, because I have started up my programing with the assembly programming language, which is practically machine language and also I knew about very basic electronics at least. But what if you are not knowing these things? What if you know computers quite well, but you are neither a programmer, neither anyone who uses a soldering iron ever?
I will try my best to explain how a very simple computer really works. Read on.