The Self-Destruct Command For Computers
Engineers once joked about a secret machine code instruction called Halt and Catch Fire. Running this command would force a computer processor to stop working entirely and require a physical reboot.
This term began as a humorous jab at the confusing, obscure instruction sets used in early IBM mainframes. While it was never a standard feature, the phrase captured the frustration of low-level programming where one wrong instruction could crash a system. Today, the name lives on as a nostalgic nod to the wild, experimental days of early computer hardware. It remains a legendary piece of computing folklore.
Source: Halt and Catch Fire (computing)