computers

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gippgig

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Sep 11, 2015, 12:30:51 AM9/11/15
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gippgig

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Nov 2, 2015, 8:14:35 PM11/2/15
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Consumer Reports rates a Raspberry Pi! Consumer Reports recommended the Raspberry Pi 2-based Kano Computer Kit for learning about computers (Dec. 2015 issue page 34).

Nick Skelsey

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Nov 2, 2015, 8:48:45 PM11/2/15
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My cousin has one and I can attest to its coolness

On Mon, Nov 2, 2015 at 8:14 PM, gippgig <gip...@gmail.com> wrote:
Consumer Reports rates a Raspberry Pi! Consumer Reports recommended the Raspberry Pi 2-based Kano Computer Kit for learning about computers (Dec. 2015 issue page 34).

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Bobby Baum

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Nov 2, 2015, 10:32:47 PM11/2/15
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The Nov. 5 issue of Rolling Stone has a story on the darknet.

gippgig

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Nov 8, 2015, 2:03:40 PM11/8/15
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pste...@gwi.net

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Nov 8, 2015, 2:17:25 PM11/8/15
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(smiles)  Bobby thanks for the link!

(Thanks from someone who is appalled at the energy pull these hellish Javascripts are making on his machine all the time.)

 

 

 

On 2015-11-08 14:03, gippgig wrote:

shawn wilson

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Nov 8, 2015, 10:05:22 PM11/8/15
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This is one of those things where, if you start to think about it, you kinda have to stop thinking about it and move on. It's not just your Web browser or any other program. It's that these things stay on - you go get coffee while writing an email and I doubt you suspend or sleep your computer - it's left waiting for you. We've done lots with servers, but PCs.....

gippgig

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Nov 10, 2015, 3:05:18 AM11/10/15
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After stating "We can sure find a home for it" the Mac Recycle Clinic decided they didn't want the Intel Power Mac I took a while back. If whoever else wanted it still does they are more than welcome to it. I'm now stuck with the #%@$ thing...

gippgig

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Jan 21, 2016, 3:13:50 PM1/21/16
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gippgig

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Feb 2, 2016, 1:50:08 AM2/2/16
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AlphaGo defeats human Go champion of Europe 5-0.
Mastering the game of Go with deep neural networks and tree search
Nature 529 484 doi: 10.1038/nature16961 (should be available at any college library)
Noone knows how it works!

gippgig

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Feb 27, 2016, 3:28:47 AM2/27/16
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gippgig

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Jun 3, 2016, 10:41:56 PM6/3/16
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Understand the Brain? Let's Try Donkey Kong First.
blogs.sciencemag.org/pipeline/archives/2016/06/03/11484
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gippgig

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Jun 11, 2016, 3:15:10 PM6/11/16
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gippgig

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Jun 29, 2016, 4:18:50 AM6/29/16
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www.spacedaily.com/reports/Worlds_first_1000_processor_chip_999.html

New method creates real randomness
Science News Vol. 189 No. 13 p. 10

Bobby Baum

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Aug 1, 2016, 4:52:02 PM8/1/16
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My iMac G5 started crashing occasionally. Turns out it's got the
well-known capacitor problem - 2 of them are swollen and seem to be
leaking. It should be simple to replace them but "should be simple"
and reality are often quite different. Anyone have any experience with
this? Any advice?
Bobby

Jarett DeAngelis

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Aug 1, 2016, 5:15:14 PM8/1/16
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At this point I imagine you just chop it, solder a new one and cross your fingers. Also, what are you using an iMac G5 for?!


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Bobby Baum

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Aug 1, 2016, 5:22:29 PM8/1/16
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I bought one back in 2005 and liked it so I replaced it with another
one when it finally failed. All I use it for is email & internet so
it's all the power I need (it's far faster than my slow internet). I
don't like the x86 chips.

Bobby Baum

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Oct 29, 2016, 5:07:54 PM10/29/16
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Ising machine - Odd computer zips through knotty tasks
Science Vol. 354 p. 269 (Oct. 21)

Bobby Baum

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Oct 30, 2016, 10:49:24 PM10/30/16
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This effect has been reported before but it's worth calling attention to:
The Science of Health - Blue Light Blues, Scientific American November
2016 p. 24

gippgig

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Nov 12, 2016, 4:54:17 PM11/12/16
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May be of interest: Angelbeat DC Seminar: IT Security, Cloud, Infrastructure, Virtual Reality
Nov. 15 7:30AM free; registration (do an internet search for the title - the web address is too complex to copy here)

Bobby Baum

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Dec 29, 2016, 8:14:54 PM12/29/16
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Jan. 8, 2017 - 11:30AM - UMd. - Annual Forum on Financial Information
Systems and Cybersecurity
www.publicpolicy.umd.edu/events/10th-annual-forum-financial-information-systems-and-cybersecurity-fisc

Bobby Baum

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Jan 22, 2017, 9:08:13 PM1/22/17
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gippgig

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Mar 4, 2017, 8:16:45 PM3/4/17
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Bobby Baum

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Mar 9, 2017, 1:43:38 AM3/9/17
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gippgig

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Aug 17, 2017, 5:51:25 PM8/17/17
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gippgig

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Mar 1, 2018, 8:40:02 PM3/1/18
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"I'm Sorry, Dave"  Debugging software spots AI's mistakes
Scientific American March 2018 p. 20

gippgig

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May 12, 2018, 6:57:41 PM5/12/18
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gippgig

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Dec 11, 2018, 12:19:31 AM12/11/18
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Quantum Computing   Progress and Prospects
www.nap.edu/catalog/25196/quantum-computing-progress-and-prospects

gippgig

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Feb 16, 2019, 1:21:21 AM2/16/19
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In-memory computing on a photonic platform
advances.sciencemag.org/content/5/2/eaau5759
doi: 10.1126/sciadv.aau5759

gippgig

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Mar 9, 2019, 7:04:10 PM3/9/19
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Spectre flaw can't be fixed:

gippgig

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Mar 15, 2019, 11:14:27 PM3/15/19
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Kevin Cole

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Mar 16, 2019, 9:02:18 AM3/16/19
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On Fri, Mar 15, 2019 at 11:14 PM gippgig <gip...@gmail.com> wrote:



On a related "note" [see what I just did there? ;-)]:
Forwarded Conversation
Subject: We are obsolete
------------------------

From: Kevin Cole <dc....@gmail.com>
Date: Fri, Aug 31, 2018 at 10:00 AM

https://www.theverge.com/2018/8/31/17777008/artificial-intelligence-taryn-southern-amper-music

THE FUTURE OF MUSIC, Episode 2:
How AI-generated music is changing the way hits are made

One of the technologies mentioned, Google's Magenta (used
by Google's N Synth Super hardware as well as stand-alone) is a
Python-based, Tensor Flow project out on GitHub. Available via pip,
apt-get or docker. The rest seem to be web/cloud-based tech.


From: Kevin Cole <dc....@gmail.com>
Date: Tue, Nov 13, 2018 at 8:17 AM
Subject: Oh yes! Get your speakers or headphones ready and give a listen.

What happens when comedy writers collaborate with AI [to create music]?

 


gippgig

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Apr 2, 2019, 9:53:37 PM4/2/19
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gippgig

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Jun 1, 2019, 12:02:55 AM6/1/19
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Computers that play video games well: science.sciencemag.org/content/sci/364/6443/859.full

gippgig

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Jun 27, 2019, 8:38:42 PM6/27/19
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gippgig

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Aug 8, 2019, 7:46:53 PM8/8/19
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Alberto Gaitan

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Aug 9, 2019, 4:06:28 PM8/9/19
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Seeing How Computers “Think” Helps Humans Stump Machines and Reveals Artificial Intelligence Weaknesses
https://cmns.umd.edu/news-events/features/4470

gippgig

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Aug 22, 2019, 9:14:04 PM8/22/19
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gippgig

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Aug 27, 2019, 12:48:54 AM8/27/19
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gippgig

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Sep 22, 2019, 2:21:51 PM9/22/19
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Probabilistic computer:
Integer factorization using stochastic magnetic tunnel junctions
Nature Vol. 573 issue 7774 p. 390 (also see 351)
doi: 10.1038/s41586-019-1557-9

gippgig

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Sep 28, 2019, 8:03:38 PM9/28/19
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gippgig

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Oct 14, 2019, 4:42:34 PM10/14/19
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Kyle Mulka

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Oct 14, 2019, 6:23:40 PM10/14/19
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Oops!

On Monday, October 14, 2019, 04:42:37 PM EDT, gippgig <gip...@gmail.com> wrote:


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gippgig

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Nov 19, 2019, 3:04:43 AM11/19/19
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The November 18 issue of Bloomberg Businessweek has a cover story on open source software. (That magazine has a surprising amount of interesting stories.)

gippgig

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Nov 28, 2019, 7:14:02 PM11/28/19
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gippgig

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Nov 28, 2019, 7:37:08 PM11/28/19
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Why deep-learning AIs are so easy to fool
www.nature.com/articles/d41586-019-03013-5

gippgig

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Dec 6, 2019, 1:05:18 AM12/6/19
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gippgig

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Dec 6, 2019, 2:08:39 AM12/6/19
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I haven't seen it, but this has been recommended as a good semitechnical introduction to quantum computers:
Quantum Computing for Everyone by Chris Bernhardt
See the review at luysii.wordpress.com/2019/11/10/want-to-understand-quantum-computing-buy-this-book

gippgig

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Dec 12, 2019, 4:28:13 PM12/12/19
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gippgig

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Dec 14, 2019, 6:08:30 PM12/14/19
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gippgig

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Dec 23, 2019, 9:39:11 PM12/23/19
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gippgig

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Dec 29, 2019, 1:33:25 AM12/29/19
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gippgig

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Jan 21, 2020, 11:21:15 PM1/21/20
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Preventing undesirable behavior of intelligent machines
Science Vol. 366 issue 6468 p. 999 doi: 10.1126/science.aag3311

gippgig

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Jan 30, 2020, 11:38:36 PM1/30/20
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Optical supercomputer: New Scientist Jan. 4, 2020 p.13

gippgig

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Feb 4, 2020, 1:23:37 AM2/4/20
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Low-cost scalable discretization, prediction, and feature selection for complex systems

gippgig

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Feb 4, 2020, 1:33:05 AM2/4/20
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A scalable photonic computer solving the subset sum problem
Message has been deleted

gippgig

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Feb 4, 2020, 1:48:07 AM2/4/20
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A Bayesian machine scientist to aid in the solution of challenging scientific problems

gippgig

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Feb 13, 2020, 6:29:05 PM2/13/20
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gippgig

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Mar 9, 2020, 4:58:38 PM3/9/20
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John Deere is interfering with independent repair of its farm equipment by limiting access to the computer software:
Who Really Owns a John Deere?
Bloomberg Businessweek March 9 p. 40

gippgig

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Apr 19, 2020, 1:44:30 AM4/19/20
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Could we be getting close to the point where AI gets ahead of us?

gippgig

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Jun 24, 2020, 3:45:27 AM6/24/20
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gippgig

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Jul 10, 2020, 11:35:57 PM7/10/20
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A couple handy things for web browsing:
Eliminate sticky headers that get in the way & interfere with printing - alisdair.mcdiarmid.org/kill-sticky-headers/
Find free versions of journal articles - unpaywall.org

gippgig

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Jul 13, 2020, 12:24:48 AM7/13/20
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The biggest flipping challenge in quantum computing

gippgig

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Aug 5, 2020, 3:25:18 AM8/5/20
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gippgig

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Sep 16, 2020, 2:19:42 PM9/16/20
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gippgig

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Sep 16, 2020, 2:40:50 PM9/16/20
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gippgig

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Sep 22, 2020, 2:57:53 AM9/22/20
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Array programming with NumPy
Nature Vol. 585 No. 7825 p. 357   doi: 10.1038/s41586-020-2649-2

gippgig

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Oct 2, 2020, 3:26:25 PM10/2/20
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A universal system for digitization and automatic execution of the chemical synthesis literature

gippgig

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Oct 18, 2020, 2:47:04 AM10/18/20
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Explainable and trustworthy artificial intelligence for correctable modeling in chemical sciences
Science Advances Vol. 6 no. 42 eabc3204   doi: 10.1126/sciadv.abc3204

gippgig

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Nov 12, 2020, 2:56:21 AM11/12/20
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gippgig

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Dec 16, 2020, 3:52:28 PM12/16/20
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gippgig

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Dec 17, 2020, 3:33:14 AM12/17/20
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gippgig

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Dec 25, 2020, 5:06:50 AM12/25/20
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From code to market: Network of developers and correlated returns of cryptocurrencies
Science Advances Vol. 6 no. 51 eabd2204  doi: 10.1126/sciadv.abd2204

gippgig

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Jan 21, 2021, 3:48:55 AM1/21/21
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gippgig

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Jan 30, 2021, 3:33:20 PM1/30/21
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gippgig

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Feb 6, 2021, 1:04:35 AM2/6/21
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Learning the language of viral evolution and escape
Science Vol. 371 no. 6526 p. 284 (& 233)   doi: 10.1126/science.abd7331

gippgig

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Feb 27, 2021, 3:32:18 PM2/27/21
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gippgig

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Apr 16, 2021, 2:10:04 AM4/16/21
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gippgig

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Jul 21, 2021, 1:20:38 AM7/21/21
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gippgig

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Aug 9, 2021, 7:55:31 PM8/9/21
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Section 230 Protections: Can Legal Revisions or Novel Technologies Limit Online Misinformation and Abuse?
www.nap.edu/download/26280

gippgig

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Aug 17, 2021, 9:31:40 PM8/17/21
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gippgig

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Aug 23, 2021, 11:44:27 PM8/23/21
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For quite some time I've been thinking about what my dream CPU would look like. It's got a long way to go, but I finally got around to writing it up. I would be very interested in anyone's opinions or suggestions.
The 64256 is my preliminary design for a maximum-performance CPU. It includes many unique features:
1. While it is a 64-bit CPU, it has a 256-bit data bus.
2. It has 65536 registers (status register, program counter, & 65534 general purpose) on the chip.
3. It has as much main memory as possible on chip.
4. Each 64-bit instruction performs 2 functions simultaneously.
5. Conditional instructions (other than being based on a bit of a register) can be based on the result of the other function of an instruction eliminating the need for flags in the status register.
6. The word length can be selected (using the status register) to be any power of 2 from 2 to 64 bits, providing SIMD capability (i.e., if the word length is set at 8 bits an add immediate would add the value to each group of 8 bits)
7. If the word length is less than 64, conditional instructions could be based on whether the condition was true for either all on any of the words.
8. Conditional instructions could be based on how many bits of the result are 0 (note that the lowest bit of the zero count is the same as a parity bit & the highest bit is the same as the conventional zero flag (always true if the word length is a power of 2)).
General description:
The chip would have an address space of 2 to the 64th power 64-bit words (since the address bus is 256 bits, each read would be 4 words; writing less than 256 bits would be somewhat complicated but no more than for a typical chip with a 64-bit bus that addresses memory as 8-bit bytes).
The registers would be a stack so there would be a separate stack pointer. R0 would be the status register & R1 the program counter. Additional general purpose registers could be created at any time by pushing the stack; registers at the end of the stack would be written into memory (very fast with the 256-bit bus) & R0 & R1 relocated. For a subroutine call the stack pointer would be decremented (creating 1 new register) & R0 relocated, saving the PC in R2. For an interrupt, the SP would be decremented by 2 saving the old status register & PC in R2 & R3.  More advanced versions of the design could keep track of which registers have been written into and only save them or writ\
e changed registers into memory when the bus was not needed to speed up register creation.
Memory would be accessed by special LOAD & STORE instructions like in most RISC designs.
The typical instruction format would have 8 8-bit fields, from right to left destination1, source1, modifier, operation1, destination2, source2, addressing modes, & operation2. The addressing modes field would be further divided into 2 bits for each destination & source. The modes for the sources would be number (immediate data, allowing 8-bit constants to be used in a standard instruction), register, register indirect, & register indirect postincrement; for the destinations register indirect predecrement, register, register indirect, & register indirect postincrement. The operation field would be subdivided into a 6-bit opcode & 2-bit modifier indicating what the modifier field does. For operation1 the modifier could be second source (register mode only), extend source (giving a 16-bit address), extend destination, or extend source & destination. For operation2, no modification, same modifier, same source, or something else (not fully defined yet) would be specified.
Standard format instructions would include AND, OR, XOR, COMPARE, ADD, ADD with carry, SUBTRACT, SUBTRACT with borrow, MULTIPLY, DIVIDE, FLOATING ADD, FLOATING SUBTRACT, FLOATING MULTIPLY, FLOATING DIVIDE, MULTIPLY FLOAT BY INTEGER, & DIVIDE FLOAT BY INTEGER (floating point would not be defined for a word length of less than 16). Other instructions such as shifts & rotates would have different formats. Conditional operations (skip or branch) could be based on the result of the other part of the instruction (perhaps if operation2) or on any bit of any register (perhaps if operation1). Immediate (longer than 8 or 16 (using the modifier) bits) operations would just use R1 indirect autoincrement (which would have to be the same value for both operations of a single instruction).
One possible extension would be extended operations that function out to the end of the 256-bit group of 4 words (i.e., if extended operations were enabled (which could be set independently for operation1 & operation2), ADD R4 to R12 would add R4 to R12, R5 to R13, R6 to R14, & R7 to R15; ADD R6 to R14 would add R6 to R14 & R7 to R15; while ADD R7 to R15 would be the same regardless of whether extended operations were enabled). I suppose if the lowest 2 bits of the source & destination were not identical no extended operation would be done so extended & regular operations could be mixed (just thought of that one - this is definitely a work still in progress).
This seems to be an extremely powerful design. The wide data bus, 65536 registers, & on-chip main memory would hopefully avoid the need for cache (which I find very awkward, especially if a lot of data is written to memory) & simultaneous execution of two operations at once provides the advantage of superscaler operation without complex dependency-checking circuitry (but given that modern chips execute more than 2 instructions at once this would only cut the complexity in half - maybe a 128-bit chip that executes 4 operations at once should be considered for the future).

gippgig

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Sep 10, 2021, 1:01:04 AM9/10/21
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Open source autonomous driving program: tier4.jp/en/autoware/

gippgig

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Oct 1, 2021, 1:52:06 PM10/1/21
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gippgig

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Oct 6, 2021, 4:28:01 AM10/6/21
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gippgig

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Oct 19, 2021, 1:45:37 AM10/19/21
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U. Md. hackathon: gotechnica.org

gippgig

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Oct 25, 2021, 3:33:33 AM10/25/21
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gippgig

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Nov 12, 2021, 4:56:19 PM11/12/21
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Tech firms hit by chip faults   New Scientist No. 3340 June 26, 2021 p. 20 (I found it online at dokumen.pub/qdownload/june-26-july-3-2021-new-scientist)

gippgig

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Nov 20, 2021, 3:21:45 AM11/20/21
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Something really weird happened when I was updating the TV shows that may be of interest list on the HacDC wiki. Note that the - is missing from both Nov. 26 entries for Plants Behaving Badly at noon & 1PM. If I try to add either - it crashes the system, giving a server error message. = also causes a crash but + doesn't. I tried deleting that region of the list and reentering it but that didn't fix it. Does anyone have any idea what the hell is going on here? I'm totally baffled.
     Bobby

gippgig

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Nov 26, 2021, 8:09:12 PM11/26/21
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gippgig

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Nov 28, 2021, 5:10:28 AM11/28/21
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gippgig

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Dec 27, 2021, 4:46:31 AM12/27/21
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RISC-V Raspberry Pi alternative "coming soon":
www.tomshardware.com/news/visionfive-riscv-board

gippgig

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Dec 27, 2021, 3:44:50 PM12/27/21
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gippgig

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Jan 3, 2022, 9:46:18 PM1/3/22
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gippgig

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Jan 13, 2022, 10:32:58 PM1/13/22
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gippgig

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Jan 27, 2022, 4:46:28 PM1/27/22
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gippgig

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Mar 18, 2022, 4:49:12 AM3/18/22
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gippgig

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May 7, 2022, 5:29:56 PM5/7/22
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