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Sometimes it starts with a 555 timer and an op-amp. Other times with a small microcontroller. But the timing’s not so great and needs a dedicated timing crystal circuit. And maybe some more memory, ...
This article originally appeared on the blog of author Ken Shirriff and is reprinted here with his permission. Alan Kay recently gave his 1970s Xerox Alto to Y Combinator, and I’m helping with the ...
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