Arduino is not recognized

Hello guys i bought a new arduino from ebay. Um it can not be recognized from ym computer as my other one(the first) this is a cheap one and I dont know if it is broken or some thing…

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What's it have for a USB/Serial interface chip? Could be you need a different driver.

CrossRoads:
What's it have for a USB/Serial interface chip? Could be you need a different driver.

How can I download driver for Arduino? I mean I did not use any kind of driver on my previous. Can you help me out with that? :confused: If it was a GPU i would knew what to do xd

If it's an Arduino brand Uno, the driver is included as part of the files you download with the IDE.
Look under Arduino/drivers.
The FTDI folder is for certain boards that have an FT232 chip, like the older Duemilanove, the Nano.
Not for the newer boards which use a 16U2 chip.