Talks to Watch

Making logic gates from transistors

3.1M views · Mar 23, 2015 · 13:02 · 2 HN recommenders · 4 mentions · discussed 2019–2023

Ben Eater shows how to build logic gates out of transistors, including NOR gates. It is part of his clear hardware-from-scratch teaching style.

Why Hacker News points people here: HN people recommend Ben Eater's videos for easy, clear explanations of digital logic and building computers.

“All his videos are amazing, and super easy to understand.”HN comment, 2019

What Hacker News said 4

Strongly recommendscompiler-guyMay 2019

“All his videos are amazing, and super easy to understand.”

Clear explanation of NOR gates from transistors

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This video was reasonably good, but still required a lot of background. If you want really terrific easily understood, yet totally in-depth information about integrated circuits, starting from the physics how semi-conductors actually work at the electron level, all the way up through gates and on to an entire computer, Ben Eater's videos are outstanding. Most people know his work from the Breadboard computer, link , where he builds an actual functioning computer, with instructions and microcode and output, from scratch on a breadboard, along with terrific explanations. But that is just the tip of the iceberg. All his videos are amazing, and super easy to understand. Here is his version of how nor gates work: which is way easier to understand to me than this video: this video Here is his whole channel: link and his website: link

in “Integrated Circuits Can Be Easy to Understand with the Right Teachers” · view on HN
Recommendsz3ugmaJul 2021

“series on building an 8-bit computer from scratch was very helpful to me”

Ben Eater series building a computer from scratch

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Ben Eater’s series on building an 8-bit computer from scratch was very helpful to me in this regard: link this video

in “Ask HN: Recommend Some Logic Gate Tutorials and Examples?” · view on HN
Cites itsomatJun 2023

“The thing that blew my mind was how you can replace discrete transistor logic with memory.”

Combinational logic from transistors

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The thing that blew my mind was how you can replace discrete transistor logic with memory. While it is sort of obvious in retrospect. I think it an important insight into the nature of computation. Making combinational logic gates from transistors: this video Using an EEPROM to replace combinational logic: link

in “Firmware Is Broken Terminology” · view on HN
Cites itpixelfarmerJun 2023

“Something like that?”

Example of basic gate explainers

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Something like that? link or this video and there are truckloads more of these. There used to be electronics sets for kids with breadboards (some of them larger scale for easier physical handling then standard breadboards), and they'd had manuals with them explaining all the things. I remember that they also contained descriptions of basic gates like (N)AND, (N)OR, NOT, plus flip flops for storing 1 bit of data.

in “Modern CPUs have a backstage cast” · view on HN