Application software is a defined subclass of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform.
This should be contrasted with system software which is involved in integrating a computer's various capabilities, but typically does not directly apply them in the performance of tasks that benefit the user.
The term application refers to both the application software and its implementation. A simple, if imperfect, analogy in the world of hardware would be the relationship of an electric light - an application - to an electric power generation plant - the system.
The power plant merely generates electricity, itself not really of any use until harnessed to an application like the electric light which performs a service that the user desires.
Typical examples of software applications are word processors, spreadsheets, and media players.
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