arduino USB keyboard with the serial port NO HARDWARE CHANGES?

i want to have the arduino(uno or duemilanove) to emulate a US keyboard with no hardware changes just printing in word on the serial port
a URL will be great
please be nice 

Are you looking for something like this?
act casual (author)  mpilchfamily5 years ago
no, i said no hardware changes

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a serial keyboard
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No hardware changes as in you upload a code to the Arduino and suddenly the Arduino is using it's serial interface as if its a keyboard?

Then have a look at this topic from the old Arduino Forums.
act casual (author)  mpilchfamily5 years ago
yes and i have seen it done using a game port by just serial printing.