How do Computer Keyboards Work? 🤔⌨⌨🛠

Рет қаралды 1,073,812

Күн бұрын

Hurry and SIGN UP for Keysight World - Live from the Lab here: www.keysight.com/us/en/events.... You'll be entered into a colossal test gear giveaway! During the live stream, you'll learn about Batteries, DC to DC Converters, and a wide range of Internet of Things Devices.
You probably use a computer keyboard for dozens of hours a week, but have you ever wondered what it looked like inside of them or how it worked? Also, what's the difference between a basic and a mechanical keyboard? And what makes that clicking sound? Well, in this video, we're diving into both basic keyboards and mechanical keyboards, so stick around!
Do you want to support in-depth engineering and technology education? Join us at: / brancheducation
Website: www.branch.education
On Facebook: / brancheducation
On Twitter: / teddytablante
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Table of Contents:
00:00 - Exploring Computer Keyboards
01:06 - Teardown of a Basic Computer Keyboard
02:09 - How do Basic Keyboards Work?
04:22 - Scanning Through the Computer Keyboard
06:21 - Sponsored Section
07:39 - Exploring Mechanical Keyboards
09:58 - Laptop Keyboards
10:32 - Outro
Key Branches from this video are: How does your Mouse know when you move it? How do Scroll Wheels Work? How does Computer Hardware Work?
Erratum:
Animation: Mike Radjabov
Script: Teddy Tablante
Twitter: @teddytablante
Modeling: Prakash Kakadiya
Voice Over: Phil Lee
Sound Design: www.drilu.mx
Sound Effects and Music Editor: David Pinete
Supervising Sound Editor and Mixer: Luis Huesca
Animation built using Blender 3.5.1 www.blender.org/
References:
A Beginner's Guide to Switches www.theremingoat.com/blog/beg...
Apple's Butterfly Keyboards vs. Scissor Switch Keyboards www.macrumors.com/guide/butte...
How Do Mechanical Keyboards Work: Guides to Pick the Right Switch fittingchairs.com/how-to/how-...
Wikipedia contributors. "Keyboard Matrix". "Keyboard Technology". "Computers". Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited May 10th 2022
#MechanicalKeyboard #Keyboard #Mechanical

Пікірлер: 794

@darpax_ Жыл бұрын

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

@Tyvototuo Жыл бұрын

Same

@imadeddinemanssouri7709 11 ай бұрын

for real i have the same wish 😟😟😪

@addanametocontinue 11 ай бұрын

You realize these videos take a lot of skill and time to make. No way your average professor, even if really good as explaining things, is going to have the time nor skillset to produce such videos.

@you-know-who5657 11 ай бұрын

Hey there fellow human with same pfp

@MrTyty527 11 ай бұрын

@@addanametocontinue that's why we have this channel and we appreciate the collective effort!

@killlinah Жыл бұрын

The production level is amazing and yet very underrated

@religionbuster7180 11 ай бұрын

it has 1.1m subscriber later this will have a million views. you dont even know what underrated means.

@akhmadali5064 11 ай бұрын

how you can come with 'underrated' statement

@coin777 11 ай бұрын

Underated is such overated word right now.

@truck.-kun. 11 ай бұрын

Nothing's underrated. This will explode

@custardtart1312 11 ай бұрын

Tired old cliche from someone who’s only just found the channel. Goon.

@cedricbrun4241 Жыл бұрын

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.

@innovativeadvertising6463 9 ай бұрын

Hey {{3}}, I totally agree with your suggestion! A behind-the-scenes video explaining the process of creating those incredible animations would be super interesting. It would give the audience a deeper understanding of the time and effort it takes to produce such high-quality content. I'm always fascinated by the creative aspects of technology. Keep up the great work! 💪🖥🎬

@f.antonio1113 7 ай бұрын

I was scrooling to write the same commentary

@WowYesWow 3 ай бұрын

Yes

@PCBWay Жыл бұрын

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

@innovativeadvertising6463 9 ай бұрын

Hey there! Thanks for your comment. While I appreciate your positive feedback, I couldn't find any reference to keyboards in your comment. However, if you're interested in optimizing your desktop setup, a handy tool I recommend is the HOTO Compressed Air Capsule. It's a compact device that offers powerful vacuuming and blowing capabilities, perfect for keeping your keyboard and other areas clean. It's reasonably priced and has some great features. Check it out! 🛠⌨️

@KKKYS_NIGA69 5 ай бұрын

@@innovativeadvertising6463 no

@user-ot1qi4mc3n Жыл бұрын

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

@JaredOwen Жыл бұрын

Love it😎

@rabjkasbhHea Жыл бұрын

Hey you are the one who run this channel

@mandakhg6568 Жыл бұрын

@Jared Owen - you, Animagraffs and this channel are gem of KZfaq education.

@AIhhh12 Жыл бұрын

抓紧更新作品，还有空评论！哈哈哈

@kaushplays1914 Жыл бұрын

@@rabjkasbhHea yeah i was wonderingg the same hee coments on every branch eeducation video( dont mind the two lettters instead of one, my keyboard does that thing)

@amocapivarasrebaixadas Жыл бұрын

I'm waiting for you to post videos

@ivanalaskevich4736 Жыл бұрын

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.

@daniellewilson8527 11 ай бұрын

Thanks. I love learning

@94D33M 11 ай бұрын

Could you suggest any silent keyboard that does not make any sound at all ?

@ivanalaskevich4736 11 ай бұрын

@@94D33M Rather not, I'm not well versed in the keyboard market, I just know approximately how they work. And I'm not even sure that a 100% silent keyboard is exists, there will always be at least some noise from moving parts. All I can advise is to go to a real store and listen with your own ears, instead of believing ads like “Wow! This keyboard is really silent!”. . . . Although there are 2 more or less silent options ... but you obviously won't like them. "Laser keyboard" and a tablet with a virtual keyboard. There are no moving parts - nothing to make noise, but they are far from comfortable.

@asdfsdfsadfasdfsf 11 ай бұрын

@@94D33M there are no silent kb that doesnt make any sound. the only nearest to silent is touch like on smartphone. or something like a laser keyboard but they are really not practical to use as daily keyboard. you only have 2 choices, membrane cheap and feels like trash. and mechanical kb with silent switch. but both are not really silent tho.

@nikolay9584 11 ай бұрын

If you hit keys on membrane keyboard rather then press it is very loud. Trash cheap keyboard without metal base plate drums times louder then clicky Cherry MX Blue.

@sharkieislive 11 ай бұрын

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

@Steamrick 4 ай бұрын

Mind you, the input shown was the super-budget option that minimizes complexity. The tradeoff is that when you press more keys at once, there are combinations where the controller is unable to tell which and how many are pressed in total. More expensive keyboards will have different control layouts that allow for more keys to be pressed simultaneously.

@breadles_ Жыл бұрын

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!

@janivniv 9 ай бұрын

yeah, wanted to say the same thing :P if it were to be made from the metals then the sound would be much more metalic than plasticy

@yurio3693 3 ай бұрын

Hi breadles

@breadles_ 3 ай бұрын

@@yurio3693 hi

@lucaslopes.0 9 ай бұрын

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

@xiaolong321 11 ай бұрын

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....

@TechySkills 10 ай бұрын

donation and no comment? *OPERATION SWARM, DEPLOY*

@Darsh0606 10 ай бұрын

@@TechySkills yeeee

@supers.k9375 9 ай бұрын

🎉🎉🎉

@MyB4llsHurt 6 ай бұрын

@@supers.k9375 🎉🎉🎉

@lionheart657 9 ай бұрын

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

@The88Cheat 11 ай бұрын

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!

@joaolucamendes5503 11 ай бұрын

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...

@shinmentakez0 Жыл бұрын

I really appreciate this channel. It is too brilliant.

@bliglum Жыл бұрын

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

@headgasket_ Жыл бұрын

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.

@najiibrashiidabdi5014 Ай бұрын

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

@kairu_b 10 ай бұрын

The animation and explanation are so well-done.

@alexdsdebasis 7 ай бұрын

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 .

@dude3d 9 ай бұрын

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

@maestro8766 11 ай бұрын

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

@Choshmeesh Жыл бұрын

Thanks for existing, man. Love your videos.

@douggale5962 Жыл бұрын

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.

@triadwarfare 6 ай бұрын

As someone who has a mechanical keyboard, his information about mechanical keyboard is incorrect and incomplete and I feel he should have done a bit more research since a lot of information about mech keyboards are out there since the pandemic, from Tahea Types and Switch & Click.

@din3lka 11 ай бұрын

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

@hussainabbas1341 10 ай бұрын

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

@nesseihtgnay9419 Жыл бұрын

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.

@noobff6890 9 ай бұрын

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

@Bandrik 9 ай бұрын

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!

@joeniemand9047 11 ай бұрын

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.

@smohammadhn 11 ай бұрын

Animation level MASTERPIECE ... thanks to the production team

@stevenallan5822 Жыл бұрын

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

@mafuukan Жыл бұрын

Significant topic depth and top notch illustrations as always!

@devcybiko 5 ай бұрын

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.

@shahinrahman1459 10 ай бұрын

Incredible & detailed explanation. Thank you so much

@Matoakas Ай бұрын

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!

@luisdimensity 10 ай бұрын

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

@Marcus-vb8sm Жыл бұрын

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

@danyhaikal6073 Жыл бұрын

Beautifully done!

@christopherdarling95 6 ай бұрын

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

@kanaipathak4426 4 ай бұрын

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

@JawadIshrarKhanOfficialYT 8 ай бұрын

This masterpiece video deserves million of views !

@CuriousParrot 9 ай бұрын

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!

@Tiberius_Gracchus Жыл бұрын

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

@javierandreiotaku 3 ай бұрын

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

@hakier_ 8 ай бұрын

Very well described. Thank you!

@erickgabrielalfaroroldan5333 9 ай бұрын

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

@gemiro1234 7 ай бұрын

This is the best channel i ever found on youtube

@BPhotography9 Жыл бұрын

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

@noahmwanza2703 11 ай бұрын

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

@user-pe4ug9od4i 10 ай бұрын

Fantastic work as always!

@ahmadawad5855 11 ай бұрын

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 :)

@daniellewilson8527 11 ай бұрын

What kinds of things are you working on?

@UncleForHire 11 ай бұрын

"I'm an Engineer" 😁 "at Amazon" 😕

@Yazan_Majdalawi 11 ай бұрын

@@UncleForHire why "😕"?

@Vuden13 7 ай бұрын

What kind of engineering?

@creed404 10 ай бұрын

That keyboard matrix explanation is great and easy to understand thanks

@heliosex7238 Жыл бұрын

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

@Duspende Жыл бұрын

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.

@triadwarfare 6 ай бұрын

Whether you watch the sponsor segment or not, the creator still gets paid. Don't feel guilt in skipping sponsor segments.

@jpraczbr8413 Жыл бұрын

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).

@adenosinetp10 Жыл бұрын

osuuuuuuuuuu

@iFireender 11 ай бұрын

nope, polling rates is something different. Polling rate is on the USB side of things.

@daniellewilson8527 11 ай бұрын

@@iFireender What is it.

@Diskpartitional 11 ай бұрын

@@daniellewilson8527 The polling rate is how often the keyboard sends data to the computer, so response time can be faster. This can be hundreds or thousands of hertz.

@iFireender 11 ай бұрын

@@daniellewilson8527 as @DiskPartition said, it's the USB side of things. Keyboards don't just send data as they get it, but they get asked by the computer x times a second, where x is the polling rate, "Hey, any new keypresses?" That has nothing to do with the switches of the keyboard, rather, just the control electronics.

@mohammadabbas8511 10 ай бұрын

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❤

@UnkleTurbo 5 ай бұрын

Thank you for the knowledge!

@767corp 4 ай бұрын

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

@sumdude4 Жыл бұрын

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!

@bluedeckelectronics 7 ай бұрын

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

@morkovija 11 ай бұрын

top shelf content right here. Thank you

@dbforeigner1438 10 ай бұрын

Honestly, Branch Education is one of the best channels on KZfaq that I've ever found.

@dannyr055 4 ай бұрын

For some reason I always thought that all the computing to find out which key was pressed was done by the actual computer, thank you. Your videos are amazing

@yazanjordan3103 Жыл бұрын

this channel is awesome thank you guys

@marko9413 4 ай бұрын

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.

@shak_yawl8 7 ай бұрын

I respect this channel highly

@TheOnlyName 8 ай бұрын

So glad I found this channel!!

@whedon25 Жыл бұрын

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

@franckhebo4435 10 ай бұрын

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

@greenfish1332 11 ай бұрын

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.

@mylesjarvis7571 7 ай бұрын

Who else besides me is binge watching this channel? Real good stuff!

@Eivraiiih 5 ай бұрын

the animation is Dope! Subscribed!

@BrilliantDesignOnline Жыл бұрын

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.

@Chriss120 Жыл бұрын

the attention to detail on your videos always amazes me.

@BartZeroSix Жыл бұрын

I don't understand why there is only a few hundred thousands views on each video. This deserve so much more!

@stash2823 Жыл бұрын

Wow that was amazing expirience , top notch editing

@ouuuaburger2093 11 ай бұрын

Whoever is animating these videos, that dude is most genius, hardworking man on earth.

@orbik_fin 11 ай бұрын

I wish you'd gone into more detail about the mechanics of the rubber dome, like how its shape affects the hysteresis of the stress-strain curve, and thus the tactile feel. And the reason why discrete-switch (or "mechanical") keyboards became popular for playing games wasn't mentioned. It's that the cheap key matrix can't distinguish keys that form a right angle on it, and thus many 3-key combinations are blocked. This can be solved by including a diode on each cross point, but that's way more complicated than just mass producing printed plastic sheets. But for discrete switches they're just a cheap additional component.

@Shlooomth 8 ай бұрын

I appreciate this as an example of the difference between engineering for cost vs engineering for robustness

@Dr_Larken 5 ай бұрын

As someone who uses a keyboard multiple times a day, this is awesome! This channel is truly underrated!

@sciencespectrum3855 Жыл бұрын

Amazing 😍 keep this amazing work 👍👏

@1123pawel Жыл бұрын

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

@BariumCobaltNitrog3n 10 ай бұрын

@Bbccr3444 So cute when bots interact.

@anixxx2 Жыл бұрын

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.

@drxym 10 ай бұрын

I had to dismantle a Kawai electric piano recently to fix some keys and internally it's quite interesting. it's mechanical in the sense that the keys have weight and travel similar to a real piano but right at its core it's some silicone pads and contacts. So you push the key to overcome the weight and the force of the contact, presumably voltage over the contact is what translates into striking a note.

@watchletv 10 ай бұрын

awesome and very informative video, thank you guys

@shubhamnath5119 Ай бұрын

Awesome Video. Highly Appreciated 😊👍🏽

@AnasAli_06 17 күн бұрын

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

@TheBoomerBoss Жыл бұрын

Animation and depth is amazing!

@Reelmoana 10 ай бұрын

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

@ecsta_chic Жыл бұрын

Great Video! 🎉🎉 Thank you! ❤

@dil173 8 ай бұрын

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

@Metalrasputian Жыл бұрын

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.