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George Boole and the AND OR NOT gates
BBC ^ | 8 December 2014 | Chris Stokel-Walker

Posted on 12/08/2014 9:59:37 AM PST by Borges

Mathematician George Boole died 150 years ago (today). Boolean logic, the system he invented, is still used in modern computer programming

Boole walked two miles to the lecture hall where he was due to give a lecture to students in 1864. But it was raining, and he became ill, dying of pleural effusion - liquid around the lungs - on December 8, 1864. He was 49.

In the last 17 years of his life he had established the concept of algebraic logic in mathematics, and simplified the world down to basic statements with either a yes or no answer, for which he used binary arithmetic. "The respective interpretations of the symbols 0 and 1 in the system of logic are Nothing and Universe," he said. It was a concept he first introduced in 1847, and expanded on in 1854. But even now, 150 years after his death, it's used in computer programmes.

(Excerpt) Read more at bbc.com ...


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To: Yo-Yo

Is there really such a thing as an exclusive NOR gate? That used to be a joke between my boss and I. I don’t think there is any actual chip so designated.

Electro-humor.

74LS good ol’ days.


21 posted on 12/08/2014 10:31:40 AM PST by Attention Surplus Disorder (At no time was the Obama administration aware of what the Obama administration was doing)
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To: omega4412

Oh wait, it’s the anniversary of his death, not his birth, that probably explains it.


22 posted on 12/08/2014 10:31:54 AM PST by dfwgator
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To: Yo-Yo

lol


23 posted on 12/08/2014 10:37:34 AM PST by fhayek
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To: rdb3; Calvinist_Dark_Lord; JosephW; Only1choice____Freedom; amigatec; Ernest_at_the_Beach; ...

24 posted on 12/08/2014 10:38:42 AM PST by ShadowAce (Linux -- The Ultimate Windows Service Pack)
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To: dfwgator
There are 10 kinds of people. Those who know binary and those who don’t....

...and those who don't realize that it's a tertiary statement.

25 posted on 12/08/2014 10:41:07 AM PST by ShadowAce (Linux -- The Ultimate Windows Service Pack)
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To: Borges
You is, or you isn't. Wax on, wax off.

One day I will be told why we live in a binary universe...by G-d, or not...

Ok, I've posted this stuff before, so sue me...

...or not...

5.56mm

26 posted on 12/08/2014 10:43:21 AM PST by M Kehoe
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To: Borges
Consider the computer revolution using binary logic and memory.

Now consider what would be possible with Trinary Logic once it can be implemented in hardware.

One byte (28 or 8 Bits) can have 256 different values. One Tryte (39 or 9 Trits) can have 19,683 different values. (Some have defined a Tryte as 36 for 729)

"Ceterum censeo 0bama esse delendam."

Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)

LonePalm, le Républicain du verre cassé (The Broken Glass Republican)

27 posted on 12/08/2014 10:45:23 AM PST by LonePalm (Commander and Chef)
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To: ShadowAce

mommy! The kids were boolean me at school!


28 posted on 12/08/2014 10:48:36 AM PST by GeronL (Vote for Conservatives not for Republicans)
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To: LonePalm

On the one hand, that sounds like a good idea.

On the other hand, it might be very difficult to implement.

On the gripping hand.....


29 posted on 12/08/2014 10:53:52 AM PST by PlateOfShrimp
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To: PlateOfShrimp

Nice. Exactly what I was thinking.


30 posted on 12/08/2014 10:55:52 AM PST by Interesting Times (WinterSoldier.com. SwiftVets.com. ToSetTheRecordStraight.com.)
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To: BipolarBob

They acted Booleshly.


31 posted on 12/08/2014 10:59:14 AM PST by mylife
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To: PlateOfShrimp
What was that?

I have something in my eye. ;-)

"Ceterum censeo 0bama esse delendam."

Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)

LonePalm, le Républicain du verre cassé (The Broken Glass Republican)

32 posted on 12/08/2014 11:01:14 AM PST by LonePalm (Commander and Chef)
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To: dfwgator

LOL


33 posted on 12/08/2014 11:01:33 AM PST by mylife
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To: dfwgator

Dang, you beat me to it!


34 posted on 12/08/2014 11:03:58 AM PST by expat_panama
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To: dfwgator

Well done!


35 posted on 12/08/2014 11:06:37 AM PST by expat2
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To: Yo-Yo

All you really need is a two input NAND gate :-).


36 posted on 12/08/2014 11:08:10 AM PST by edh (I need a better tagline)
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To: dfwgator

Is “10” signed or unsigned? If it’s signed it makes no sense.


37 posted on 12/08/2014 11:08:46 AM PST by edh (I need a better tagline)
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To: Borges

Boole?

How about the guy that made Boolean useful?

Claude Shannon - father of the Information Age.


38 posted on 12/08/2014 11:12:11 AM PST by glorgau
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To: ShadowAce
There are 10 kinds of people. Those who know binary and those who don’t.... ...and those who don't realize that it's a tertiary statement.

Don't Care.

39 posted on 12/08/2014 11:12:46 AM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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To: Cvengr

It was a joke, son.


40 posted on 12/08/2014 11:14:11 AM PST by ShadowAce (Linux -- The Ultimate Windows Service Pack)
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