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From: Jan Panteltje <alien@comet.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Memristor cross bar arrays for faster AI neural nets and math?
Date: Tue, 19 Mar 2024 11:56:53 GMT
Message-ID: <utbui5$1i3q9$1@solani.org>
References: <ut8hfj$1glje$1@solani.org> <ut93d2$43ac$1@dont-email.me> <ut94l2$1gm2b$1@solani.org> <20240318a@crcomp.net> <utb8kq$1i1l9$1@solani.org> <1qqnsje.160u1is1cm93gcN%liz@poppyrecords.invalid.invalid>
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On a sunny day (Tue, 19 Mar 2024 08:55:59 +0000) it happened
liz@poppyrecords.invalid.invalid (Liz Tuddenham) wrote in
<1qqnsje.160u1is1cm93gcN%liz@poppyrecords.invalid.invalid>:

>Jan Panteltje <alien@comet.invalid> wrote:
>
>
>> Mechanical, old 78 rpm records store even music.
>
>They were also used for data.  The WWII transatlantic telephone
>scrambler system used "one-time records" (like a one-time pad) to
>synchronise the encoding and decoding of the audio bands.
>
>(I'm not sure where I came across that, but I think it could be hidden
>away in either the 'cdvandt' or the Crypto museum websites.)

Some googling found it:
 https://www.cryptomuseum.com/crypto/usa/sigsaly/index.htm

Some setup!