iPhone OS

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IPhone OS
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iPhone OS version 2.2
Company / developer Apple Inc.
OS family Mac OS X / Unix-like
License Proprietary EULA
Official website iPhone Dev Center

iPhone OS is the operating system developed by Apple Inc. for the iPhone and iPod Touch. iPhone OS has four abstraction layers: the Core OS layer, the Core Services layer, the Media layer, and the Cocoa Touch layer. The operating system takes less than half a gigabyte (GB) of the device's total memory storage, this means that users will not get thier full storage space.