Software is a collection of information, guidelines or programs used to operate computers and execute specific jobs. It is the reverse of hardware, which explains the physical elements of a computer. Software application is a common term utilized to describe applications, manuscripts and also programs that work on a gadget. http://history.lib.ntnu.edu.tw/wiki/index.php/%E4%BD%BF%E7%94%A8%E8%80%85:Toolx9