I need send and receive information to/from the printer in the serial port. I'm using the function bioscom() of the Turbo C++ 3.1 for DOS, but I'm having problems understanding some of the bits. I know it can be made with the function outport(), but I don't know how to do it. All information is welcome. Is there any book, web site or anything else where I could find something about it (please, for DOS or windows)?