a.out
a.out is a file format used in older versions of Unix-like computer operating systems for executables, object code, and, in later systems, shared libraries. The name stands for assembler output.
a.out remains the default output file name for executables created by certain compilers/linkers when no output name is specified, even though these executables are no longer in the a.out format.
Unix와 같은 OS에서 실행할수 있는 파일 포멧이다. a.out은 "assmebler output"을 의미한다. ( 대충 이런 내용 ? )
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