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Summary

Frameworks are bundles (directory hierarchies) that provide convenient access to the executable code and resources of dynamic libraries. All Objective-C programs use the Foundation framework, which defines basic classes needed for any non-trivial program. Mac OS X GUI programs use classes from the AppKit framework to construct their UI; the iPhone UI uses classes from the UIKit framework. Apple supplies many other frameworks for specialized tasks such as audio and graphics. Some of these are C language frameworks that use an object system and memory management functions defined in the Core Foundation framework.


  

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