Your friend is mistaken. This serial port he is talking about is called "CGA" and closely resembles a serial port. However it still requires a graphics card and a monitor! You can convert a CGA signal ...
I can get a 21" monitor with BNC cables for inputs. I've never seen the actual monitor, so maybe I'm wrong - but the wires are not in the more common serial plug form. <P>Can I splice the BNC cables ...