The two major categories of software application are application software application and also system software. The most common type of software application, application software program is a computer system software package that does a certain feature for a customer, or in some cases, for another application. System software application sits http://history.lib.ntnu.edu.tw/wiki/index.php/%E4%BD%BF%E7%94%A8%E8%80%85:Toolx9