If you prefer a computer game over a book, have a look at MHRD: > http://store.steampowered.com/app/576030/MHRD/ http://store.steampowered.com/app/576030/MHRD/

If you prefer a computer game over a book, have a look at MHRD: > http://store.steampowered.com/app/576030/MHRD/ http://store.steampowered.com/app/576030/MHRD/ This game is rather similar in spirit to "The Elements of Computing Systems", which I recommended above, but more summarized (though it only considers up to CPU level in opposite to the Nisan-Schocken book).