PC to PC arduino data tranfer/ communication with Infrared LED

I need to establish pc to pc serial arduino communicationwith infrared LED. One computer will send data ( text for example ) and the other computer will see it. I need to use infrared led ( light based system ). Can anyone please tell me how can I achieve this? http://www.zolalab.com.br/references/serial2ir.php

Will this tutorial work for pc to pc communication?

If you have any link, please send me . :(

Thanks in advance.

You must decide yourself whether that simple interface will work for you. It has a limited range, and is susceptible to external (sun...) light. Also transmission is possible only in one direction, with no other similar connection or other IR device in sight.

You don't need Arduinos, any USB to serial converter will work already.