He actually made the point right in the book that the code was obsolete from a use perspective. The relevance (even today) was in understanding how the computer

He actually made the point right in the book that the code was obsolete from a use perspective. The relevance (even today) was in understanding how the computer works so you could make tradeoffs. I still remember the video 7 story at the beginning of one of the chapters. Those are lessons that are still relevant today.