Yup. In this case at least. Sequent use a LOT of custom IC's (built
all their own boards at this time.)
They added a LOT of cache logic to the boards. The very earliest
machines. (Based on an NCR chip, the 'Balance' series) actually had a
bit of memory on some device that they used for atomic operations, but
that all went out of the window when they switched to i386.
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