I can tell I’m dumb because of how much effort I’ve put into trying to understand this and I still haven’t gotten it. But for the life of me I can’t grasp how we got from punch cards to machine language to assembler language. It is almost magic.
Good question — it was critical mass. Via punch cards, we got enough code into computers to process keyboard input. The code ingested via punch cards allowed keyboards to work. And then keyboards worked and it snowballed from there.
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