> I recently read an article about how most modern mainframe deployments (IBM excluded) are software emulation running on x86 platforms I know where there are

> I recently read an article about how most modern mainframe deployments (IBM excluded) are software emulation running on x86 platforms I know where there are four thumping great Sun boxes running in production, each roughly the size of a bar fridge, with about as much computing power as a Raspberry Pi 4. If only you could run Solaris 8 and Oracle 10 on an RPi...