The two major groups of software application are application software and system software program. The most typical type of software program, application software program is a computer software plan that does a particular function for a customer, or in some situations, for another application. System software program sits in between http://ifi.edu.vn/index.php?language=vi&nv=users&nvvithemever=t&nv_redirect=aHR0cHM6Ly9zb2Z0d2FyZS10b29sLmNvbS26