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f4f4f4f4f4f4f4f4 t1_j1rn317 wrote

To be faaiirr... The 1974 RAM board has control logic circuitry there, too. The modern RAM is controlled by a part in the system's CPU. You may compare the black shielded section to the modern RAM!

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Potatoswatter t1_j1u1qu0 wrote

Looks like decode logic. Core memory doesn’t need refresh like DRAM. It does need to be restored after reading, but it’s hard to say if this board implements that step or the CPU.

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