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From: liz@poppyrecords.invalid.invalid (Liz Tuddenham)
Newsgroups: sci.electronics.design
Subject: Re: Memristor cross bar arrays for faster AI neural nets and math?
Date: Tue, 19 Mar 2024 08:55:59 +0000
Organization: Poppy Records
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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.)


-- 
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk