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From: rbowman <bowman@montana.com>
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Subject: Re: VMS
Date: 18 Jun 2025 04:14:42 GMT
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On Tue, 17 Jun 2025 23:20:24 -0400, c186282 wrote:

>    Old telegraphs were interesting - because the data was essentially
>    'binary' - ones and zeros, contact or not. This made it possible to
>    use simple relays as repeater/amplifiers. Easy 1800s tech.

Sort of. The first attempts were complex.

https://en.wikipedia.org/wiki/Needle_telegraph

Morse and the refiners of his system introduced a time element, with a dot 
being three dits.