Do you know assembly language? Why it died?  

assembly language is not really died, but it's only too much complicated to program, because it's a language nearer to a machine than to people. Programmers sometimes still program in assembly, to reach complex function of hardware. XP parts too and Dot.Net were programmed assembly language. But mainly it's programmed in C++ and other simplier but still powerful languages. C++ can include assembly too in its own code!

tis lang. never die because it is basic lang. but you can say that only few people use it because it is very difficult and time consuming