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Aucbvax.2201 fa.unix-wizards utzoo!duke!decvax!ucbvax!FRANK@UTAH-20 Thu Jul 9 15:45:50 1981 Adding additional memory to 11/45s From: Randy Frank <FRANK@UTAH-20> Does anyone know of available products that enable one to extend directly addressable memory on a PDP 11/45 above 256KB? Ideally, such a product would emulate 11/44 or 11/70 style 22 bit addressing (i.e., would provide Unibus mapping registers). I thought I had seen a memory board which also had on board 18 to 22 bit address mapping, but can't seem to find any references.

I'm open to home-grown solutions, but a commercially available product is preferable!

(I am aware of memory products that are made to look like disks for high speed swapping, but these seem less preferable than truly adding more directly addressible memory).

Thanks for any pointers.

Randy Frank -------

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