Not much is left of the great IBM, but their Z architecture is still superior when it comes to reliability at scale.
In fact, "what happened to IBM?", they were in the news recently: https://wccftech.com/ibm-worlds-first-dual-architecture-proc...
Creating the world's first dual instruction set CPU.
> Creating the world's first dual instruction set CPU.
World's first? What about the VIA C3 (or earlier NEC V20)? I'm sure there are more / earlier ones.
https://en.wikipedia.org/wiki/Alternate_Instruction_Set