network applications in iphone

I want to build an application to connect to a network server and share the datas开发者_高级运维 with it. Could any one please inform me, any sample applications or tutorials to help me in this path. Thank you.

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You might want to read the documentation for NSURLConnection and related questions here on Stack Overflow. There’s also a lot of interesting source code on GitHub.

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http://developer.apple.com/library/mac/#documentation/cocoa/reference/Foundation/Classes/NSSocketPort_Class/Reference/Reference.html

Read it, it will help you.

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IU think you need to study about externalAccessories framework . to add external devices through iphone