Why understand OS levels and below in application development?

Question

Android

does a mobile application developer need to know low-level (relatively) things like isa, OS multitasking, compiler devices? Maybe you don’t need to know about any memory addressing and function call stack above the basic concepts at all?

Answer 1

depends on tasks.
if the tasks are a banal butt, covered by the provided system api, then nafig (usually *) did not rest.
if the tasks are to tweak / expand, then it is very useful.
* understanding the system at a low level may (not the fact that) allow you to write optimized code and / or use undocumented features of the system / system api.