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J. Peterson said...

Reading your article, it sounds like IBM could have used fewer chips with less exotic cooling if they'd used custom CMOS instead of the bipolar gate arrays.

What was the advantage of their approach? Was there one? The TCM looks steampunk compared to contemporary processor chips of the era.

Mar 31, 2021, 4:47:32 PM

Posted to Teardown of a logic chip from a vintage IBM ES/9000 mainframe