this paper presents a comparative study of various operating system archetypes similar to Windows, Linux, UNIX, ANDROID, and
AMIGA which are the most well known operating systems. The basic criterion for studying the different operating systems the fundamental
architecture power management, Architecture, security and throughput, this research study gives an overview on the similarities and differences
in the basic operating systems use. As every operating system has difference in the underlying composition and working background this gives
the best valuable comparative study.