What do iPhone processors, software, and chips do?

I don't have too much information about iPhones, and I need this question answered for my project As soon as possible!

Chip is a general word, and included a lot, including the processor. Software is the programmed code that affects how the user interacts with the device.

Good information really isn't that hard to find. There's this great new thing called Google. Start with this: http://electronics.howstuffworks.com/iphone.htm

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