Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Examining a vintage RAM chip, I find a counterfeit with an entirely different die inside
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A die photo of a vintage 64-bit TTL RAM chip came up on Twitter recently, but the more I examined the photo the more puzzled I became. The c...
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Inside Intel's first product: the 3101 RAM chip held just 64 bits
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Intel's first product was not a processor, but a memory chip: the 3101 1 RAM chip, released in April 1969. This chip held just 64 bits ...
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Bitcoin mining on a vintage Xerox Alto: very slow at 1.5 hashes/second
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I've been restoring a Xerox Alto minicomputer from the 1970s and figured it would be interesting to see if it could mine bitcoins. I cod...
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