How do Computer Keyboards Work? 🤔⌨⌨🛠 

I am a Computer Engineering Student, I wish this is how our professors visualize and teach us electronics

The production level is amazing and yet very underrated

As always incredible level of animation, is it possible to make a behind the seat video where you explain how your animations are made, how long it takes etc. I think it would be really interesting for the audience.

The editing and visuals in your videos are superb. Thank you for sharing such informative and high-quality content.

In fact, a click creates a blow of a plastic cap on the upper face of a mechanical button. The sharper and stronger pressing, the louder this sound. If you press the button slowly, or do not push the keycap to the lowest position, the sound of this keyboard is much quieter. For "blue" mechanical buttons, an additional sound is created by the impact of… that white element on the bottom of the button. It is also enhanced by keycap. The sound of the membrane keyboard is muffled by rubber dome. There is no such thing in mechanical buttons, so the sound is stronger. If you put a rubber ring between the keycap and + thing on the button, the sound from pressing will also be quieter.

this is a really good explanation of how keyboards work. however, one thing to note is that mechanical keyboard clicks on clicky switches generally come from a click mechanism, not the contact between the metal leaves. this can best be demonstrated by using a key switch without a click mechanism, such as a linear switch. which will generally be much quieter than clicky switches. other than that, most of your information is correct. keep up the great work!

I am a CS student and this is really fascinating to watch 😄 I always thought how all these keys can be taken in account with such small amount of input lines ..the concept was matrices was amazing and inspiring

Lovin the narration, and seeing the visuals and graphics improve from your first video is actually inspiring me to keep learning and get better.

Wonderfully produced video as always, but there are some errors/incorrect definitions worth noting; 1:14: The 104 'keys' are actually 'keycaps'. 1:24: The rubber dome sheet isn't under the keys, it is the keys (the actuation mechanism). 1:41: At the start you mention the cost of wired office keyboard, but are now discussing a wireless one which isn't a big deal, but a little misleading. 2:24: I'd phrase it 'when the user presses down on the 'keycap' or 'when the key is pressed, the rubber dome collapses'. This is an issue of calling the keycap a key 5:23: (might be incorrect) Would have been good to explicity call this polling rate and give the frequency in Hz. 5:27: I could be wrong here, but scanning is constant. You can't start scanning when you detect a key because you need to be scanning to detect the key in the first place. 8:05: Not all of them click, but given the target audience this makes sense. 8:12: Ironically, you call these keycaps on the mechanical keyboard but not the membrane one. 8:16: An unfortunate side effect of using Cherry MX blues as the example switch is that this slider design is unique to click-jacket switches and isn't representative of linear, tactile, and other clicky switch designs. The slider in MX blues is more commonly called a 'click jacket' because it's separate from the blue stem and pole. 8:53: This is just incorrect. The leaves contacting each other is not the source of the clicking sound in any MX-style switch. The actual souce of the click is the click jacket hitting the bottom housing. The pole hitting the bottom housing creates that 'clack' sound. 9:04: You also actually never explained why this switch is tactile. The animation shows it, but it is not explained. 9:00: Again calling the keycap a 'key'. 9:11: The stem and slider in MX blues is actually separated to create hysteresis. What you described is travel distance to actuate the switch, which all MX-style mechanical switches have (typically around 2mm). 9:37: Eh, I would argue most rubber domes are more tactile than MX blues. 9:40: The keycap hitting the rubber dome isn't the source of tactility, the collapsing of the rubber dome is.

You sir are a a real contributor of knowledge to the world. Your videos should be standard material in universities :) Complex topics explained in an easy, understandable and awesome visualized way! Keep on going, THIS is what youtube really needs, not the 1000th channel about some crap....

I really appreciate this channel. It is too brilliant.

Sorry to inform you, but the click mechanism explained is incorrect. The click in not produced by snapping of metal contact points of the leaf, but when the click jacket(white part below blue stem) strikes the bottom of the stem or the switch.

This video is so good. Explaining regular simple yet very complex stuff that basically everyone uses at these detailed explanations, is chefs kiss :)

It is fun to watch technical content that is so accurate and correct. I thought it was going to be a thing about the USB specification scan code map, the boot protocol, and report based keyboard class interfaces, but you did something better, less USB focused and more keyboards in general.

This is one of the few channels where I don't skip the sponsor segment. This is all super fascinating and I love to learn about whatever. Literally whatever. As long as it is in this format. Sent from my mechanical keyboard.

i just amazed to see , what a marveous 3d editing ? how much efforts are inserted to make this topic cleareley understandable. Thank you for making such educational video for free .

This is the bst videos I've ever seen on RU-vid they're so detailed and easily understood. Thank you @Branch Education

This channel, that I only found out abt days ago, is amazing. Not only do you answer questions I've had, but also many I - by seeing your thumbnails - wasn't aware of I wanted answered. You do it in such a tremendous way as well! How easy you explain it, is paradoxically not easy. It takes skill to do that in the educational way as you do. Simple and straight to the point. Other than the sponsor section, no time is wasted on anything irrelevant to the content. To me, honestly, that is such a relief - to listen to something that is professional and entertaining, without any annoyance or irrelevancy. Real chill too, with the calm way it's explained. What's so impressive, I think, is you do it the same way in every video - no matter the topic. Many of which are complex. Still, whether it's graphic cards or lithium batteries, inside 30-ish minutes, you make it so anyone can understand it. So, respect! Great video! Great channel!

I would love if you guys did a video like this that shows us how you make these kinds of videos. Like how you go from getting the physical item and how you break it down and model it on a computer. That would fascinating!

The amount of effort and quality dedicated to these videos is awesome, thank you!

what took me half a term to learn the basics i learned in 10 minutes from this channel. Keep it up!

This videos feels both like an orgasm to the brain by finally understanding all this tech to its finests details, and an orgasm to the eyes. Those animations are beautiful, smooth and so close to real... I can't believe people can access this for free...

Great vid! The renderings are excellent, very clear and easy to understand.

The animation and explanation are so well-done.

Love it. The voice is very calming and crystal clear. Videos are also top quality and very easy to understand. The modelling of all those components is very very interesting. I'd definitely love to watch how these videos are made from scratch.

Quality of your work ever TOP [ information , animations and didatic ]...Brasil, Thanks!

Good description. And there are side effects like ghosting and rollover that you've glossed over. The use of diodes to prevent ghosting. But the production values are very good and this is a great introduction to keyboard design.

I want to correct you at 8:15, the “slider” isn’t there on most switches and is mostly just a clicky [blue] switch thing and the slider and stem are one of the same on most switches. On clicky switches it’s commonly called a click jacket because it’s what makes that click sound. When the click jacket passes the tactical bump I’m pretty sure the contacts act like a leaf spring and slam the click jacket to the bottom of the switch thus making a click noise. The contacts also don’t make much noise on activation point if at all.

Oh my G! best tech youtube video watched in my 15+ years of usage. WHat a brilliant content!

Perhaps the best keyboard is the one we made along the way

Thanks for existing, man. Love your videos.

Amazing video ❤❤❤❤❤, simply explaining the mechanism of keyboard. Keep up the good work. 😊

Started to watch this channel when I was a college student, now after 4 years, I'm an Engineer at Amazon and still watch this awesome videos. Whoever is behind this channel, you're exceptional :)

Significant topic depth and top notch illustrations as always!

Incredible & detailed explanation. Thank you so much

Excellent visuals. Thank you for putting together such a detailed explanation.

This was an awesome video! I think one thing to note is the specific mechanic switch type you showed was a clicky switch, which is not the only design regime. There's generally two other mechanical designs (which are separate from new hall effect switches as well!) The slider present in these switches is separate from the stem as they're intended to "Bottom out" the slider separate from your key stem. That's used to create a tactile AND audible feedback for when the actuation occurs. Which is why typists prefer that switch. However, linear and tactile switches are different. The "slider" portion is actually a part of the stem, it's all one piece. For linear switches, this means there's no tactility aside from the stem bottom and topping out, so no feedback on when the leaf springs makes contact. This is because there is no valley in the stem's point of contact with the leaf spring. It just slides past the leaf spring smoothly. Tactile switches use the same valley to engage the leaf spring to give you a tactile indication of actuation but no audible "click" feedback, since it's all one piece and that slider doesn't slam into the bottom of the switch housing. Again, great video! The animations were superb.

This channel is amazing. To the talented ppl creating/producing these videos - thank you!

Fantastic work as always!

the animation is Dope! Subscribed!

Even the AD was interesting , great work! 👍👍👍

Awesome Video. Highly Appreciated 😊👍🏽

I really enjoyed this video and shared it also. The voice is very comfortable to my ears. I wish there was more detail on the laptop keyboard also as that would have been helpful to a personal situation. I found the video animations to be extremely captivating. I'll go watch some more now for fun.

Beautifully done!

Animation level MASTERPIECE ... thanks to the production team

Very well described. Thank you!

Very professional explanation 👏🏻

Ah yes, mechanical keyboards, a very talked point on rhythm game communities since its said that mechanical keyboards can improve how you play not only for the more tactile feeling but also from higher pooling rates (the rate of the "pulses" that is talked about at 5:15).

That keyboard matrix explanation is great and easy to understand thanks

The animation is amazing, thank you so much and keep going

Holy crap, your production value and attention to detail has skyrocketed. I imagine those 3d models take a while to build, let alone animate, but they make things so much easier to understand. Thank you!

wow 🎉 This video is just the best never thought i would come across something like this, to enlighten me more on how keyboards works Keep the great job man much love❤

I can't wait for you guys to make a video for microprocessors, keep up the amazing animation. You guys deserve more views and subs.

Awesome! Thanks guys👍!

Thank you for all your videos ! Great videos ! Great source of info !

Such an incredible and informative video! I have learned so much about computers from your videos!

Something we use everyday and just take it for granted. Nicely explained. Thanks.

this channel is awesome thank you guys

So glad I found this channel!!

Amazing breakdown of mechanical keyboard intricacies! Learned how an oscilloscope helps in reverse engineering the design. Can't wait to apply these insights into my own projects. Appreciate your clear explanations and the upcoming Keysight event info. Subscribed and excited for more deep dives into the tech that fuels our world!

Your animations are so clean. I look forward to your next video 👍🏼

Thank you for the knowledge!

You guys are the one of a kind and best in the world....a big support from India.

top shelf content right here. Thank you

there are more than 1 type of mechanical keys. -blue and brown: clicky/tactile, giving a bump and a click(blue is loud) -red and black: linear, smooth all the way(black is harder to press) -Etc

I appreciate the effort on animation. And the explanation also very clear ❤️

wow, both of them work exactly as I thought. I'm really impressed with my mind

Love it😎

I'd love to see an episode about the plastic Vernier caliper. Thank you for this incredibly high quality educational content.

Wow that was amazing expirience , top notch editing

this video is very underrated im amazed by the minor knowledge you gave on every thing

Great Video! 🎉🎉 Thank you! ❤

Amazing 😍 keep this amazing work 👍👏

Amazing work!

awesome and very informative video, thank you guys

I am amazed at how accurately the L K270 keyboard is modeled. It is actually my daily driver I typed this with. And due to coffee spills, I have had it apart and rinsed it out so I know the internals well, and it still works. You can actually run the shell and the keys through the dishwasher and then let it dry out completely.

I think it might be useful to add that in 5:45 the voltage input on „row 6” goes down because „turning a column off” means connecting it directly to the ground thus making the current flow that way (cause there is only cable resistance there) rather then through higher resistent microcontroler - which explains 0V on row 6 input.

Another great video! Thanks for taking the time to make it

wow i am a freshman CS students and this is the type of explaining that I think would be perfect. thank you a lot. i will watch your other videos too

An incredible video! Thanks!

This is so fantastic and amazing.Thank you, very much for the content.

your channel and power cert videos are my IT go to lessons.

maaaaann increrible!! tnkss guys!!

Thanks for your hard work

Thanks you for this incredible beautiful explanation on keyboards. It is always a pleasure 🎉

Very informational love the animation and production always looking forward for the next video.

Great work! Love this Channel!

I've learned something new 💡 🧠. Thank you so much 💙

Very good video. Good explained and everything but I missed the analog switches with light barriers in them and how the pcb works.

Always love watching these videos. I already knew a good amount of it but it's always a nice refresher. Also When I saw that wireless keyboard I had a Leonardo pointing at screen meme moment. I have that same exact keyboard for my media center!

Your videos are always easy to understand even if you're not from the engineering industry and just watching for the sake of knowledge

increible!!! muy bien explicado! me encantan estos videos

Really really helpful.❤

Man, I can't believe that I didnt find this channel before, this production level is incredible

Amazing video ❤❤❤❤❤, simply explaining the mechanism of keyboard.

Amazing as always

This channel should have more subscribers. This is one of the best divulging channels on YT.

Thanks to our COA preethi mam for this link

Thank you for making these amazing videos. Please if you can make a video on How computer networks work then it can enlighten a lot of students about the networking. Thank you so much.

hats off for your efforts