That’s a pretty obscure/dated reference to the Master Control Program that ran on Burroughs mainframes.

I suspect the downvotes are for “… stupid AI crap.”

...and that still runs on Unisys Libra systems, doing the sort of boring but important work that keeps the world running, such as processing unemployment benefits for the people that are going to be laid off of the AI companies once everyone realizes AGI isn't going to happen and GenAI is the new leaded gasoline.