Re: Beware survival bias
(protip: 3.5" floppy-USB converter won't do you any good)
What is the interface on it? If it is a standard cable (e.g. RS232 serial, or parallel), I'd get a USB-whatever converter and read up on how to hack together something that talks the same language. I might throw together something in C# to talk to it, or maybe dust off the Rasp-Pi. If it's something more proprietary, I'd wire it to the pin-outs on the Rasp-Pi.
Actually, I'd probably just google it and follow the instructions in a youtube video...