None of them. Study Knuth. Study the Intel manuals. Study “The Art of Multiprocessor Programming”. Study compilers. Study TCP/IP. Study algorithms and data structures. Write lots of code for all of those things.
Disregard the noise. Ban yourself from reading blogs and magazines and tech news. Focus on what is fundamental to the field. Look where nobody else is looking.
Disregard the noise. Ban yourself from reading blogs and magazines and tech news. Focus on what is fundamental to the field. Look where nobody else is looking.