which default application of windows plays audio and vedio
Media player (software) Mainstream operating systems have at least one built-in media player. For example, Windows comes with Windows Media Player while OS X comes with QuickTime Player. Linux distributions may also come with a media players, such as SMPlayer, Amarok, Audacious, Banshee, MPlayer, Rhythmbox, Totem, VLC Media Player, and xine. Android OS comes with Google Play Music as default media player and many apps like Poweramp, Beautiful Music Player, VLC Media Player.
Application software In information technology, an application is a computer program designed to help people perform an activity. An application thus differs from an operating system (which runs a computer), a utility (which performs maintenance or general-purpose chores), and a programming tool (with which computer programs are created)[original research?]. Depending on the activity for which it was designed, an application can manipulate text, numbers, graphics, or a combination of these elements. Some application packages focus on a single task, such as word processing; others, called integrated software include several applications.[3]