Under Standing iTunes & iOS (iPhone Operating System) !!

By: Unknown on 5:28 AM

iTunes is media Library and media player devolved by Apple , which Allow synchronization of iDevices . iTunes works between computer and idevices like IPHONE , IPAD , IPOD . It works on computers running the OS X operating system and the iOS-based iPod,iPhone, and iPad devices, with editions also released for Microsoft Windows. Through the iTunes user can Purchase and download Audio , Video and Application developed by OS X developers via App Store. Apple's App Store contained more than 700,000 iOS applications, which have collectively been downloaded more than 30 billion times. 
The 2nd Main function of iTunes is Upgrade , Downgrade , Software repair of your iDevices via IPSW . You can Backup your devices via iTunes and restore Back up ( Contact , Msg, Photos). 

Apple iOS
Understand Iphone Operating System. 

An operation system is the process that all other programs works on for various devices , such as tablet PCs , computing devices , mobile handsets , media players , and so on . The operation system on a Computer is Windows , while the operating-system on a Mac pc is Mac OS X . iOS ( formerly apple iphone OS ) is Apple’s phone operating-system . 

Initially developed for the apple iphone , iOS has since already been extended to support some other Apple company devices such as the ipod device Touch , apple ipad , and Apple TV . Apple , Inc . does not license iOS for installation on non-Apple equipment . The user user interface of iOS depends on the idea of direct manipulation , using multi-touch gestures . The fluid interface manage components consist of sliders , switches , and control keys with a fast and instant response . Interaction with the OScontains gestures for example swipe , tap , pinch , and reverse pinch , which have specific definitions within the context of the iOS operating-system and its multi-touch interface . Inner accelerometers are utilized by some applications to respond to shaking the device ( 1 common result is the undo command ) or rotating it in 3 dimensions (1 common result is switching from portrait to landscape mode ) . 

In iOS , it includes 4 abstraction layers : the Core OS layer , the Core Services layer , the Media layer , along with the Cocoa Touch layer . The present version of the operating-system ( iOS 5 .0 .1 ) uses roughly 770 megabytes of the device’s storage space , varying for each model .