I had not heard this part - the article implies that the systems that connect the turnstiles to the mainframes run OS/2. Pretty neat. The machines that are th

I had not heard this part - the article implies that the systems that connect the turnstiles to the mainframes run OS/2. Pretty neat. The machines that are the topic of the article (the MetroCard machines themselves) still run Windows NT 4. Blue screen shot from 2016: https://twitter.com/nycdotnet/status/750737744356319232 https://twitter.com/nycdotnet/status/750737744356319232