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<google>BUY_IPAD</google>
In [[The Anatomy of an iPad 2]] we looked at the hardware that is contained within an iPad 2 device. When we develop apps for the iPad Apple does not allow us direct access to any of this hardware. In fact, all hardware interaction takes place exclusively through a number of different layers of software that act as intermediaries between the application code and device hardware. These layers make up what is known as an operating system. In the case of the iPad, this operating system is known as iOS.
