The two main categories of software program are application software program and also system software program. The most typical type of software application, application software is a computer software program plan that does a certain function for a user, or in some instances, for an additional application. System software program http://c3myduca.edu.vn/index.php?language=vi&nv=news&nvvithemever=t&nv_redirect=aHR0cHM6Ly9zb2Z0d2FyZS10b29sLmNvbS27