When I was on contract at the Illinois EPA around 2008, there was exactly one computer that could program the dataloggers used to monitor air quality around the state. It was the slowest computer at the IEPA, and it was still too fast to reliably program our dataloggers. It took about 3 minutes to send the configuration to the datalogger (over a serial port), and running the software had roughly a 60% chance of corrupting the transfer.

The first Windows-based software I ever shipped was for programming ESC dataloggers. Last I heard, it was still in use by the IEPA Bureau of Air.