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<span class="GramE"><span class="grame"><i><span
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<p><a
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<p class="MsoNormal" style="text-align: center;" align="center"><b
style="">OPLIN 4Cast #176: Memristor<br>
</b><span style="font-size: 10pt;">May 5, 2010<o:p></o:p></span></p>
<h1 style="text-align: center;" align="center"><span class="grame"><i><span
style="font-size: 12pt;">4casting technologies that could have an
impact on
public libraries.<o:p></o:p></span></i></span></h1>
<p>Researchers at HP have solved the 37-year mystery of the memory
resistor,
the missing 4th circuit element (beyond the inductor, resistor and
capacitor).</p>
<p>Known as <a href="http://en.wikipedia.org/wiki/Memristor"
target="_self">memristor</a>,
Wikipedia gives some good examples of future use. They could begin to
take the place of transistors in computers, saving space. "They can
also be fashioned into non-volatile solid-state memory, which would
allow
greater data density than hard drives with access times potentially
similar to
DRAM, replacing both components.</p>
<p>"HP prototyped a crossbar latch memory using the devices that can
fit
100 gigabits in a square centimeter. HP has reported that its version
of the
memristor is about one-tenth the speed of DRAM.</p>
<p>"Some patents related to memristors appear to include applications
in
programmable logic, signal processing, neural networks, and control
systems."</p>
<ul type="disc">
<li class="MsoNormal" style=""><a
href="http://www.theregister.co.uk/2010/04/08/hp_memristor/"
target="_self">HP's Memristor tech - better than flash?</a></li>
<li class="MsoNormal" style=""><a
href="http://www.wired.com/gadgetlab/2008/04/scientists-prov/"
target="_self">Scientists Create First Memristor: Missing Fourth
Electronic Circuit Element</a></li>
<li class="MsoNormal" style=""><a
href="http://spectrum.ieee.org/semiconductors/design/the-mysterious-memristor"
target="_self">The Mysterious Memristor</a></li>
<li class="MsoNormal" style=""><a
href="http://arstechnica.com/science/news/2010/04/complete-logic-set-performed-using-memristors.ars?utm_source=rss&utm_medium=rss&utm_campaign=rss"
target="_self">Memristors combine memory, logics set in one device</a></li>
</ul>
<p><b><i>Cool fact:</i></b><br>
The most advanced transistor technology today is based on minimum
feature sizes
of 30 to 40 nanometers — by contrast a biological virus is typically
about 100
nanometers — and Dr. Williams said that H.P. now has working
3-nanometer
memristors that can switch on and off in about a nanosecond, or a
billionth of
a second. He said the company could have a competitor to flash memory
in three
years that would have a capacity of 20 gigabytes a square centimeter. [<a
href="http://www.nytimes.com/2010/04/08/science/08chips.html">full NYT
article</a>]<span class="grame"><o:p></o:p></span></p>
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<p>The <em><b>OPLIN 4cast</b></em> is a weekly compilation of
recent headlines, topics, and trends that could impact public
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<pre>--
Bobbi Galvin
OPLIN Customer Relations & Support
P: 1-888-966-7546
<a class="moz-txt-link-abbreviated" href="http://www.oplin.org">www.oplin.org</a><span style="font-family: "Times New Roman";"><o:p></o:p></span></pre>
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