The two major groups of software program are application software program as well as system software application. The most typical type of software, application software program is a computer system software program bundle that carries out a particular function for a customer, or in some instances, for one more application. http://history.lib.ntnu.edu.tw/wiki/index.php/%E4%BD%BF%E7%94%A8%E8%80%85:Toolx9