How Computer Memory Works - Computerphile

How do logic gates store information? - We explore how computer memory works with Dr. Steve "Heartbleed" Bagley

This video was filmed and edited by Sean Riley.

[seekerperson]

Lol - I love that bit where he's like "Did I just short everything?" Makes me feel better about my own mishaps in lab ^_^

[ScottBeebiWan]

"We have an and and an or."

- Steve of Computerphile

[Maytenus]

This is well explained in the book "Introduction to computing systems: from bits and gates to C", but Ben Eater's videos are also very good... And finally I discovered this channel too... Great!

[vijayakrishna]

I find joy in working out logic expressions as a mathematician. I thought I would die without understanding "how computer remembers the data electronically". Now I conquered the world . Thank you so much Dr.Steve. Next think would be proving the consciousness of a computer.

[moebius]

Pay attention. See him struggling to make the simplest of circuits work? That's what it's like learning electronics in college. Rinse and repeat for every single lab assignment. And this is the easy digital stuff.

[SigmundSkjelnes]

The Apollo Guidance Computer were built entirely from NOR gates, as NOR were the only available type of gate in a microchip at the time it were built. The AGC were rebuilt some years ago, the number of chips were cut by 2/3 by using modern chips with all types of gates available. Good video.

[Leonelf]

now, that's just static RAM, pretty easy, but can you show us how SSD memory works? Or generally all the persistant memory types (PROM, EPROM; EEPROM, FLASH etc?

[arpyzero]

So much easier to demonstrate with redstone ;D

[andrius]

When I used to study these things, I remember finding pictures, like the one at 8:52, puzzling, until I figured out that each of the logic gates is also connected to the 5V of the power supply by a fourth wire, which is usually not depicted.

[Fiendxz]

Watching this, something clicked in my head. It all makes perfect sense now, thank you for the video.

[MarkMach]

wonderful explanation! It’s so nice to see someone explain these things in a bit of a detail, perfect for engineers.

[MrOddbodd]

I always have struggled to learn how RS NOR latches/gates work but computerphile, you just made it a lot more easier to understand.

[woodywoodlstein]

This guy is very good at explaining things.
He’s my second favourite dude here.

[martylonergan]

Happily transported back to my Digital Circuits 101 class circa 1991 - Love it.

[imtypingwords]

props to the person who invented this and or figured out how to make it. i was so lost.

[realityscorned]

And not once has he used the word "flip-flop" xD

[FerroNeoBoron]

You wouldn't believe the kinds of tricks memory designers take to make storage and retrieval of data quick. This is a necessary first step to understanding it but man does it turn out to be a small part.

[mahmudfasihulazam]

This is brilliant! I wish there was an explanation for why the two outputs start out as the opposites of each other; that is, why, if one is q, the other must be ~q. That's the part that's keeping me from following through the final reasoning.

[dannyc.]

im glad there are genius people out there making this for us

[stch]

Excellent animations in this one. well done. I like how you showed the pinouts of the chip when its still on the breadboard.