AND OR NOT - Logic Gates Explained - Computerphile

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Basic logic gates explained and all the different ways they can be drawn and represented. Professor Brailsford takes us through the AND, OR & NOT logical operations.

This video was filmed and edited by Sean Riley.

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I already know all this stuff, but I watched the whole video simply because Professor Brailsford is such a wonderful lecturer. This is one of my all-time favorite channels, thanks for keeping with it!

I would love to see a video going further into binary logic, for instance how NAND/NOR are used in flash memory, or how XOR is more generally used.

buxt-tech
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Computerphile,
you might consider doing an episode on the implementation of logic gates in RTL / CMOS so viewers can learn how all this actually works in silicon.
I think Professor Derek McAuley has some knowledge on this from his discussion on Moore's Law.
Great and interesting topics! Great work.

Rickyroko
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Probably the only Computerphile video in which I understood everything that was said.

bookdream
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I know that I'm quite late with my comment (3 years it seems), but I really wanted to say how much I like how Professor Brailsford cares about the electronics engineers. Much appreciated!

vimicito
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I like the way this guy explains things..are there more? Can I watch him exclusively?

johnbird
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Professor Brailsford seemed quite happy about explaining this ^^

erelde_
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You teach this better than my computing teacher 😂💛

alishawhelan-baxter
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This is so clearly explained and so simply put. Honestly, fantastic tutorial

trydodgingthis
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I am 15 y/o and i learn this in school so this subject is amazing

celinem
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That "square matrix" is called a Karnaugh map

SinthTeck
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Why does Youtube offer better lectures than my university?
Great video! :)

Luisn
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Wonderful explanation, so calm and clear! Thanks <3

jacquelinemartinez
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Had to learn this if you wanted to use redstone in Minecraft

Nintony
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Simple but wonderful!
If you want really interesting triggering rhythms in modular synths, you need to learn this.

VinnieLeeStudio
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Good video, prof. I am learning logic gates right now. Quite an interesting topic.

Koseiku
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disappointed that you didn't show the actual mechanics of how these work, personally I think that the logic behind it is pretty simple and intuitive

erobertt
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To our european viewers: The way Professor Brailsford draws his logic gates is not what you'll usually see around here, as he uses a US standard. We simply draw squares with a symbol in it (& for and, ≥1 for or, etc). We also use the little circles denoting not operations for brevity, and all in all I think it's nicer and more intuitive than the random shapes which you have to memorize. Seeing how americans like random standards (three feetsies in a yard!) it doesn't surprise me that they still use it though :P

The US-standard is called US ANSI 91-1984,
the european one IEC 60617-12.

Schindlabua
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Thank you for this! Great help in only a few minutes! You guys rock!

similartoself
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better than my college teacher
great channel..keep it up

minasalah
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Nice thing about treating AND as multiply and OR as addition is that they have nearly identical mathematical properties. So you can write your outputs as a set of math functions. From that point optimizing your logic for least amount of gates becomes the familiar "simplification" stuff we were taught in arithmetic classes.

eideticex