Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Inside the mechanical Bendix Air Data Computer, part 3: pressure transducers
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The Bendix Central Air Data Computer (CADC) is an electromechanical analog computer that uses gears and cams for its mathematics. It w...
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Interesting double-poly latches inside AMD's vintage LANCE Ethernet chip
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I've studied a lot of chips from the 1970s and 1980s, so I usually know what to expect. But an Ethernet chip from 1982 had something new...
The transparent chip inside a vintage Hewlett-Packard floppy drive
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While repairing an eight-inch HP floppy drive, we found that the problem was a broken interface chip. Since the chip was bad, I decapped it ...
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Two interesting XOR circuits inside the Intel 386 processor
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Intel's 386 processor (1985) was an important advance in the x86 architecture, not only moving to a 32-bit processor but also switching ...
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