Take a look at

Reading devices via Serial/Parallel Ports

i went to take at the site you gave but there wasn't any clear explanation if serial ports were supported or i was just dumb to not understand what they've talked about. in any case, please enlighten me sir. i need an exact answer to this.

thanks,

anony

No, you cannot access the serial ports of your computer with DOSBOX. If you want that, you have to code it yourself.