Comment Re:Free DOS in 2019 (Score 2) 94
We use FreeDOS in all of our systems. It is a deterministic operating system. We build industrial laser systems with high speed beam steering systems that controls the pulse duration, pulse period, and linear speed of the beam in real time while tracking the part through space. Our current systems have I7 processors and required a custom bios to allow for upper memory ( the remain memory above 640k below the 1mb mark). We do trig math in between motion updates that happen at 100khz. I have test many other platforms and non can compare. The slowest part of the system is the PC104 bus which is actually an ISA bus that runs at 8.33mhz
So it's not that it's cool to run an older OS. It is that there isn't a new OS that can keep up with well write dos code.