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Old 05-29-2011, 03:21 PM   #1
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Default A new take on nonvolatile memory

Well, actually an old one.

A very old one.

I present to you a complete, functioning four byte magnetic core memory for the arduino: http://www.corememoryshield.com/report.html




Some folks have too much time on their hands...
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Old 05-29-2011, 03:35 PM   #2
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Quote:
Originally Posted by Joe Perez View Post
Well, actually an old one.
Some folks have too much time on their hands...
Yes, you do.
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Old 05-29-2011, 05:35 PM   #3
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Yesteryear's news. You need to read slashdot more often.
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Old 05-29-2011, 05:56 PM   #4
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When I was in the Air Force I was a Crypto Tech. The KW 26 used magnetic
core memory, we called them bi mags. They were still being used in 1980
http://en.wikipedia.org/wiki/KW-26
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Old 05-29-2011, 06:48 PM   #5
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Interesting.

The history of modern crypto is of interest to me, and I'm a bit surprised that I've never come across the KW26 before.
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Old 05-30-2011, 03:29 AM   #6
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KW26??? We had a KG84C and two KY57, and the KY was actually concidered ancient and was there for backwards compatibility with units that weren't upgraded yet.
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Old 05-30-2011, 06:19 AM   #7
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This is a really nerdy thread. One time pads and all.
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Old 05-31-2011, 06:17 PM   #8
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Quote:
Originally Posted by Reverant View Post
KW26??? We had a KG84C and two KY57, and the KY was actually concidered ancient and was there for backwards compatibility with units that weren't upgraded yet.
You obviously are much younger than me. I worked on KG 13 KY 3 and KW7 which was considered portable (lots of fun carrying one up the hatch on a flying command post while it was waiting to take off ) We had 1200 baud modems that were bigger than refrigerators. I used to pray to God that **** wouldnt break during my shift. Shift registers were these big plastic modules and would provide either a 1 or 0, one per module at about an inch square apiece. A counter would consist of at least 12 of these, The good old days
When I got out of the service in 1980 I went to work for a pbx manufacturer, and couldnt believe they could run 150 phones in a box half the size of the 1200 baud modem
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