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iPhone runs on an operating system called iOS and is a part of Mac OS X. It includes core animation software component and Power VR hardware. Motion graphics is interfaced with i-phone due to iOS. The best part of this operating system is it takes less than half gigabyte. An i-Phone facilities like audio conferencing, call holding, call merger, caller ID etc. Music libraries in i-Phone divide songs according to artists, albums and videos. Graphical list of available applications are available on screen. Earlier i-Phone runs one application at a time. But the new operating systems helped it achieving multi tasking. Multitasking had been introduced to market as i- Phone4 is launched. After this, iOS7 upgraded it by running more than one open application in background. For e.g. i-Phone allows user to listen music, receive notification and record GPS data at same time. Customizable home screen allows to access active widgets.