Maybe, but when I started I learned IBM System 360/370, PDP-11, 8080, 8085, Z80, 8X51, 8086, 6800 and 68000 assembler/machine language. Where are they now?
Okay, the INTC and MOT derivations are still around, but I haven't done assembler in 10 years. CPUs are so fast nowadayz, higher level...