hello every one,

i want to know more about creation of child process.

UNDER WHAT CIRCUMSTANCES child process is created?
WHAT ARE THE PREREQUISITES for a child process to be created?

let us say we have a prog.c, prog.obj(compiled.c),.a\.out files.


is any child PROCESS CREATED from the beginning to the execution of .a.out file
in the above example


please give me clear explanation



thanks for your time