>I did think that initialy, but just imagine how many
>relays you would need for a 32kbyte memory! I find it
>quite amazing that the rest of the system uses "only"
>415 relays given the surprising amount of functionality.

Probably get away with 32k relays - if one used magnetic latching ones.
Would have the advantage they would be like core memory, and retain the info
across power outages.

The bigger hassle would come in the address logic, but even that could be
do-able. If the memory cell coils are individually brought out with one end
used as a row address, and the other as a column address, then the ladder to
decode the address would come down to a manageable size - the limiting
factor would be the number of contacts you could put on a single relay for
the final stage or two of the ladder.

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist