The two main categories of software program are software as well as system software. An application is software application that fulfills a particular need or executes jobs. System software is created to run a computer's equipment and provides a system for applications to operate on top of. The 2 major http://truongvietducthainguyen.edu.vn/index.php?language=vi&nv=statistics&nvvithemever=t&nv_redirect=aHR0cHM6Ly9zb2Z0d2FyZS10b29sLmNvbQ