who can program in assembly language?

Question

is it useful to program microcontroller in assembly language? if yes why?

Answer 1

Most modern day controllers can be programmed with some kind of C like language, so getting that deep as Assembler is not really necessary.

However if you want to be in full control - Assembler is the way, that's like talking to the processor in its native language :D

Answer 2

Assembly gets you to really low level, doing what you want woth the machine.

Also useful in understanding os code