I have an old 386 SX MS DOS computer that solely runs one program. The computer has one 5.25 IDE floppy drive that does not work and one 3.5 IDE floppy that is on it's last legs. I would like to back up all my files that I have programed over the years on to a USB flash drive. Can I do this some how through the serial port on the back of the computer or is there an IDE to UBS adapter that I can plug in where I take out the 5.25 or 3.5 floppy drives? Any help will be appreciated.