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.

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.

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

Read it, it will help you.

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