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IBM Blue Lightning: world's fastest 386?
By Thom Holwerda on 2017-11-20 20:41:15

The Blue Lightning CPU is an interesting beast. There is not a whole lot of information about what the processor really is, but it can be pieced together from various scraps of information. Around 1990, IBM needed low-power 32-bit processors with good performance for its portable systems, but no one offered such CPUs yet. IBM licensed the 386SX core from Intel and turned it into the IBM 386SLC processor (SLC reportedly stood for "Super Little Chip").

Fascinating footnote in processor history.

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