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Hp 41 memory?
12-03-2018, 02:25 AM (This post was last modified: 12-03-2018 02:26 AM by BobVA.)
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RE: Hp 41 memory?
Interesting! Some Google translate-o-matic on the photo indicates it's associated with a "building society" ("credit union" in the US). There are references to interest rates, savings accounts, etc. I wonder if it was a dedicated ROM look up module supporting constants for specialist banking calculations? Or maybe just lookup tables for calculations too complex to wait for the 41C to complete?

If so, I'd speculate that the box contains some kind of replaceable / re-programmable ROM's that were swapped out as needed to support changes in interest rates or whatever other banking arcana they needed to update regularly?
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Messages In This Thread
Hp 41 memory? - Ken S - 12-03-2018, 01:12 AM
RE: Hp 41 memory? - BobVA - 12-03-2018 02:25 AM
RE: Hp 41 memory? - Dave Frederickson - 12-03-2018, 02:34 AM
RE: Hp 41 memory? - Ken S - 12-03-2018, 03:17 AM
RE: Hp 41 memory? - Sylvain Cote - 12-03-2018, 04:19 AM
RE: Hp 41 memory? - Guenter Schink - 12-03-2018, 09:06 PM
RE: Hp 41 memory? - Leviset - 12-03-2018, 08:04 PM



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