The premise that in the event of an apocalypse some 80ies CPUs would be more readily available than today's commodity chips already prevents me from taking this

The premise that in the event of an apocalypse some 80ies CPUs would be more readily available than today's commodity chips already prevents me from taking this too seriously. But those simple Chips are certainly easier to wrap your head around for programming. In the event of apocalypse the most abundant computing platform would be old Android phones however.