Arduino not recognised.

Today when I was running a toy car using Arduino a short circuit took place and after that when I tried to connect Arduino UNO to my PC it showed an error of malfunctioning as shown in the attached image.
Can someone tell me what's the problem?

14.jpg

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As told by you I have tried both of them but it is still showing the same message can, I change that USB chip? and what Is this "328"

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How can I find that which of them is blown out?
Any visible difference or, something like that
Also, I forgot to mention that when I used it in a robot the motors started itself before my command.