In the last job I had, Win 95/98 was on a computer used to send programs to a 20-ton piece of metal working equipment. Of course, you had to drop into DOS to use the necessary software. Transfer rate was around 900 baud.
The computer that actually ran the machine consisted of a white monochrome monitor and a desk-sized cabinet full of control boards. The cabinet had an air conditioner attached to it and had trouble running on hot days.
Trivia about this machine: on the corner of one control board there was a single, green indicator LED with a broken lead. It was bent over so the broken part would still contact the solder joint and light up. If at any point it stopped making contact with the circuit, the entire machine locked up or threw random error codes until you wiggled it back into place.
The silver lining to jobs like that is after a year or two, you're the single, solitary person in the world that can keep the machine running as expected. Performance reviews become a breeze after that.
"We've been looking at your performance these last few months, and it seems you've stopped taking on new responsibilities..."
Oh, it's great when it works out like that, but this place wasn't worth staying with long term. I should clarify; I was a grease monkey/operator, not tech support. You would never break 15usd/hr even as a foreman.
The slogan was literally "Run it till it dies". The machine next to me was even older, and had a crash/down time of 1-2 hours every 9 hour day. Not kidding.
The floor offices still used terminal computers in 2014-ish. The one in my depart finally crapped out (screen flicker due to the flyback cracking a solder joint). Easy fix, I didn't say anything hoping they'd buy a damn desktop like a normal company. Nope, they special ordered a new/refurb terminal for god knows how much money (I think it was a televideo 9xx or something).
Trivia about this machine: on the corner of one control board there was a single, green indicator LED with a broken lead. It was bent over so the broken part would still contact the solder joint and light up. If at any point it stopped making contact with the circuit, the entire machine locked up or threw random error codes until you wiggled it back into place.
"We'll fix it later"