 The application software, an application software APP or application for short is computer software designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user. Examples of an application include a word processor, a spread sheet, an accounting application, a web browser, a media player, an aeronautical flight simulator, a console game or a photo editor. The collective noun application software refers to all applications collectively. This contrasts with system software, which is mainly involved with running the computer. Applications may be bundled with the computer and its system software are published separately, and may be coded as proprietary, open source or university projects. Apps built for mobile platforms are called mobile apps.