How many iOS devices are there?
410 million
Everyone knows that iOS (previously iPhone OS) represents a mobile operating system developed and distributed by Apple. It was unveiled in 2007. It supports many Apple devices. According to Wikipedia, at the half of 2012, there were 410 million devices activated. It is important to know that Apple does not license iOS for installation on non-Apple hardware. Keep in mind that t user interface of iOS is based on the concept of direct manipulation. This signifies that it uses multi-touch gestures. The control elements are represented by sliders, switches and buttons.
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