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Student Banking Problem

 
 
Roedy Green
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      04-24-2008
On Mon, 14 Apr 2008 18:23:53 -0700, Mark Space
<(E-Mail Removed)> wrote, quoted or indirectly quoted someone
who said :

>The terms mark and space go back a lot further than modems. The terms
>are from communication theory and go all the way back to telegraphy and
>Morse code. Morse code was encoded using marks and spaces.


That takes me back. My Dad was into ham radio, VE7CH, and set my
sister and I up with a key and some wire and taught us how to send
"secret" messages to each other tapping them out on an antique brass
device that looked something like this:

http://www.antiqbuyer.com/ARCHIVEPIC...bunell-key.jpg
--

Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com
 
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