Dear Ofir,

I think your too excited to learn too quickly, (that's good)
I beleive you will get most of the answers if you religiously study the datasheets of the devices and terminonolgy you are asking about.

I fully agree with Peter, that 51 is the best starting point.

I suggest you get hold of ATMEL's 2051 or 8951, get a couple of books from Amazon, get yourself a programer from <http://www.dontronics.com> or make one by yourself by downloading from <atmel.com>.

This will give you enough resources to make you a good beginner.

And of course people like Peter and many others who are no doubt "Gurus" are always there to help us out :)

I am myself a beginner and am suggesting you exactly what I have done.

Good Luck

Babar/