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Audio Computers 64K RAM Board

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Audio Computers 64K RAM board

Audio Computers 64K RAM board (top)

Audio Computers 64K RAM Board bottom

Audio Computers 64K RAM Board (bottom)

The Audio Computers 64K ARM board adds 64K RAM to the Acorn Atom. The card has 8 x D4164D 64K x1 dynamic RAM ICs and uses a Motarola MC3242AP Dynamic memory Controller. The 6502 CPU is removed from the Atom motherboard and the 64K RAM board plugged in its place. The 6502 CPU is the plugged into the 64K RAM board. I don't know where the 2 leads connect.

I have no documentation for this board.