Tandem Computers built fault tolerant and high availably machines before the web existed. The uptime of their machines was legendary, as an apocryphal technical support call demonstrates:
Hi, is this Support? We have a problem with our Tandem: A car bomb exploded outside the bank, and the machine has fallen over. …. No, No it hasn’t crashed, it’s still running, just on its side. We were wondering if we can move it without breaking it.