IOS framework Overview

Source: Internet
Author: User

IOS is an operating system running on iPhone, iPod Touch, or iPad. It is called iPhone OS. iOS and Mac OS X share the same infrastructure and underlying technology. However, iOS is designed based on the characteristics of mobile devices, so it is slightly different from Mac OS X systems, such as multi-touch and acceleration sensor support.

Next let's take a look at the iOS framework introduction:
The system architecture of iOS is divided into four layers: Core OS layer, Core Services layer, and Media layer) and Cocoa Touch layer ). This section compares the architecture layers of Mac OS X and iOS.



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