Iphone 4s will not connect to my computer or itunes on my computer?

When i plug my iphone 4s into my computer (my computer is a "HP Omni 100 PC") my computer does not recognize it and my phone does not charge or anything when it is plugged into my computer and i authorized my itunes and it still will not work how do i fix this?

Added (1). Thank you to both who answer but ya you were right tommy i just needed to plug it into the other USB port the cord works, i guess just the one USB port is broken so thank you so much!

Added (2). Thank you to both who answer but ya you were right tommy i just needed to plug it into the other USB port the cord works, i guess just the one USB port is broken so thank you so much!

Seems like an issue with the USB cable connection, because the phone should still charge regardless of whether it is in data trasfer mode or not.
Try changing the cable.i. E.borrow a friends and check if it works.

Also, try a different USB port.

There's no way to fix this this has happened to me twice and i have had my friend replace the input on it once and did not work. Then i replace all my cables but no good. I even replace all apple software on my computer but it didn't work the only thing you can do is take it to the apple store or trash it. Sorry

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