Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Inside an IBM/Motorola mainframe controller chip from 1981
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In this article, I look inside a chip in the IBM 3274 Control Unit. 1 But before I discuss the chip, I need to give some background on main...
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Standard cells: Looking at individual gates in the Pentium processor
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Intel released the powerful Pentium processor in 1993, a chip to "separate the really power-hungry folks from ordinary mortals." ...
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Inside the tiny chip that powers Montreal subway tickets
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To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it opens. The ticket works through a system called ...
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