Serial Communications

Freeduino Board. I'm a bit confused. When I send serial data, is it sending via the RS232 TTL outputs or via the USB or both.

This video seems to show it's USB

http://vimeo.com/7157953

If so do I use hyper term with Com5 (My Connection)

Thanks

When I send serial data, is it sending via the RS232 TTL outputs or via the USB or both.

That depends on what is sending the serial data (not you; you are not physically equipped to send serial data), and how that thing is connected to the Arduino.

What is sending the data, and how is it connected to the Arduino?

You send data out a comport. What makes up the comport can be hardware, USB serial adapter, or some other setup. They all should generally act the same as far as sending the data.