Inside a Hard Disc Drive

Рет қаралды 1,019,622

blueeyednanuk

15 жыл бұрын

Deconstruction of a PC Hard Disc Drive

Пікірлер: 373

@user-uz4gh7sm9l 4 жыл бұрын

From now on I'll bow down to my laptop each time I use it.

@kl9686 2 жыл бұрын

Do you still bowing down to your pc until today? Hi.

@user-uz4gh7sm9l 2 жыл бұрын

@@kl9686 reverence has grown multifolds, now I have offered myself in Its service.

@Shake_Well_Before_Use Жыл бұрын

@@user-uz4gh7sm9l wow

@HerobrineLolz 3 ай бұрын

😂🎉

@AndrejsZavaruhins 8 жыл бұрын

This is by far the best visualisation of HDD work. We didn't have those fancy visualisations at school when I was learning. We were using our imaginations to get the idea of how thinly it magnetises and reads those 1 and 0. Now someone has put it in visual form. Thanks.

@TheMadisonHang 2 жыл бұрын

and then, just think of what it takes to make this technology

@pabodhafernando3791 2 жыл бұрын

1. what is the mechanism that is used to prevent the heads crashing on the disk ? 2. what is the mechanism that is used to move the actuator arm ? 3. each track is divided in to what smaller unit ? 4. what is the name given to each 1 or 0 is called ? 5. what is the main mechanism that is used in the hard disk ?

@TheMadisonHang 2 жыл бұрын

@@pabodhafernando3791 it only takes one person to understand it for everyone else to use it

@AwesomeRobot15 7 жыл бұрын

This is so amazing, everyone should watch this to appreciate the things we use everyday.

@popyfx2599 6 жыл бұрын

Porta dos Fundos np im using ssd's brah

@youbox253 6 жыл бұрын

i use ssd .....

@popyfx2599 6 жыл бұрын

AwesomeRobot15 i dont have a hdd i only use ssd

@anawsmperson 6 жыл бұрын

Popy TV ssd dies faster than hdd

@deedr1234 6 жыл бұрын

This is from science channel.

@Megadriver 7 жыл бұрын

Truly an amazing piece of technology that none of us really appreciate enough... You go out and buy a computer and you look at cpu speeds, graphics cards and want more and more ram, but never give the hard drive much thought... Says X terabytes on the brochure and that's it! It's even more amazing how quickly technology is evolving... I remember when I was a kid, our first computer (1997) at home had only a few gigabytes of disk space. Now, 20 years later, the tiny memory card in my phone has over 15 times more space!

@lastyhopper2792 3 жыл бұрын

And they designed it to be so compact, stable, precise, and also very unlikely to fail

@slapshotjack9806 2 ай бұрын

Well now most hard drives are solid state so there’s no more moving parts but this definitely is quite an engineering marvel

@eyesweyedopen4599 3 жыл бұрын

This was the grooviest walkthrough of a hard drive I've ever seen. Thank you for changing my life.

@rjbarns 12 жыл бұрын

Great video, thanks! I looked at most of the other videos on how HDD works here on YT and this is by far the best one.

@vendetta3953 7 жыл бұрын

what a masterpiece of accuracy and engineering

@Dullfang2 2 жыл бұрын

Amazing video. I had faith that somewhere on KZfaq there would be a video taking us inside the hard drive to explain everything. Thank you. I understand now

@msgcheckout 8 жыл бұрын

truly amazing technology, guess what gave it birth, yes the good old fashioned vinyals and audio magnetic recording, as well as floppy disc drives.

@jaywalker7084 8 жыл бұрын

Thumbs up, but obviously subject to interpretation, I'd say the punch-card was the start. And, as a fun fact, was used by Hollerith (DuckGoGo "The Hollerith Machine") who's company was later renamed IBM :)

@msgcheckout 8 жыл бұрын

To compare how tiny the bits are, you could fit a 10Mega pixel picture on a size equal to a sperm head, now for those who don't know how big that is, there are 10 million such heads in a drop. Now you can imagine how small is a bit. (Please don't take it too seriously some people have thick sperm heads and you would only get one sperm head per testicle :-)

@burg3r 7 жыл бұрын

samdomding and now the created the special ssd as known as solid state drive, Jesus what's next floating computers?!

@OnyxCrow87 6 жыл бұрын

This is a cool video documenting classic hardware.

@truth-12345. 6 ай бұрын

Man, the complex engineering they have to design in order to make this device in reality, and now it's slowly becoming obsolete.

@slagboy9812 2 жыл бұрын

Isuru sir nisa balanna awe sago 🇱🇰 😌❤️✨️

@parveshkhatri1027 4 жыл бұрын

This is called seriously hard worked video . Salute

@kotai2003 15 жыл бұрын

the best presentation for understanding HDD.

@chronicsynergy 4 жыл бұрын

"at speeds that defy comprehension" imagine when this guy saw an ssd for the first time

@mammamia2418 3 жыл бұрын

@PotatoPCGamerz 3 ай бұрын

Bro this video is old - sure SSD existed but isn't common.

@ComandanteJ 11 жыл бұрын

Does anyone else find this really inspiring? Shows off how magnifecent we are, and makes me want a time machine to see what we will have 100 year in the future.

@cobrasvt347 12 жыл бұрын

this is the best example of hdd operation i have seen yet, professionally speaking its very acurate

@Devcasteel 7 жыл бұрын

That pun at the en made me groan. But it was amazing!

@mohdipgajera5112 6 жыл бұрын

When you realise that your movie is nothing but only 1 and 0 😂😂😂😂😂😂

@Ablequerq 5 жыл бұрын

😂😂😂😂👌👌👌👌

@rajibroychowdhury4202 9 жыл бұрын

Its awesome........Hats off to them those who made this......

@juliencrn 7 жыл бұрын

WOW WHO INVENTED THIS? much complicated than it looks i feel dumb now

@gavingalston8644 10 жыл бұрын

Okay, so it said that 1 square centimeter on a hard drive holds 31 billion bits... So a hard drive with a 3.5 inch diameter x pi = about 11, x 2.5 (inches to centimeters) = a 27.5cm hard disk. (Squared) 27.5 x 31 billion bits = 852500000000 bits, or a 100 gigabyte hard drive exactly. with hard disks in the terabytes now, a 2TB harddrive would be able to hold 620 billion bits (72 gigabytes) per centimeter instead of the 31 billion (3.7 gigabytes) when this video was made. But nobody probably cares.

@Daniel-cz9gt 10 жыл бұрын

*1.75^2 x 3.1416=9.62 x 6.25 (SQUARE inches to square centimeters)=60cm^2 60 x 31,000,000,000=1860000000000 bit=232 gb.

@josephkreifelsii6596 7 жыл бұрын

I've taken apart over 50 HDDs in my life. I'm seeing that the older larger HDDs had 2 disks, while the newer larger ones use 1 disk. They've managed to fit 2 disks of information into just 1 disk.

@joemama069 7 жыл бұрын

Logan Strong i didnt understand anything but okay

@phantomnebgaming 7 жыл бұрын

as part of your observations were true, some can't be translated into real world hdd manufacturing. not all of the surface area of the disk is writable/readable. factors like extreme diameters such as the inner and outer diameters have so many noises that the actuators can have problems reaching its position and affects performance. also there are spaces in between tracks and sectors that are left blank during recording to avoid interferences during magnetic recording. you computed the whole disk and forgot that a large piece of the surface is also underneath the center cap that connects to the brushless motor.

@midinerd 6 жыл бұрын

620 billion tiny violins just started playing at 60hz btw

@micmwaura 15 жыл бұрын

very nice explanation...nice commentary

@Laughing_Cat_Meme 3 жыл бұрын

11 years after this comment 🤗

@ziadfreshgame8553 3 жыл бұрын

مرحبا انت ٥اكر التعليق دة

@ramiBudemaris 12 жыл бұрын

why i feel i want to cry after watching this , that is impressive.

@GlobeRoad 11 жыл бұрын

The data on the outer edge of the disk is read and/or written faster than the inner edge of the disk since the outer edge rotates faster than the inner edge.

@andic6676 2 ай бұрын

Amazing presentation

@natashavaughan8688 3 жыл бұрын

That arm control is what controls online roulette

@RayMysteryo 4 жыл бұрын

my brain just frickin exploded .. feels good feels good.. its been a long time

@giancarloprado8206 3 жыл бұрын

SSD has join the chat. HDD: I'm a joke to you?

@nagualdesign 12 жыл бұрын

I remember a diagram from my computing class at college which showed the space between the head and the disk compared to a single particle of smoke. It looked like a football next to a letterbox!

@BharathKumar-ip7gg 3 жыл бұрын

Really great invention

@deiu9999 11 жыл бұрын

wow. I`m so amazed! also, great video... it`s explaining so well.

@Smartzenegger Жыл бұрын

Question: Does the heads get more lift at the edge of the disk compared to the most inner track of the disc or not?

@tubebility 11 жыл бұрын

A slick presentation of the balancing act it takes to maintain such systems that we take for granted. I was reading about the problem (of capacity) with commercialising the Laser HDD vs Magnetic HDD. The problem was, the laser uses 5 microns, while magnetic uses less than one. So, I looked up micron vs centimetre, and laughed my head off just thinking about such microscopic scales. Here is another presentation about microscopic scales (in time): watch?v=mfgsQX78hg8

@zaker6257 3 жыл бұрын

Still, an awesome and awing piece of technology!

@kona702 9 жыл бұрын

@ 1:06 ....YES THERE IS FRICTION. Things that arent in direct contact doesnt mean they dont cause friction on eachother. The movement of the air at 80mph is an example of this friction. If there was no friction, the drive wouldnt work...period...beleive it or not the HDD REQUIRES friction to operate correctly and within specs...

@darinb.3273 4 жыл бұрын

Consider this if it wasn't for the AIR FRICTION... the heads couldn't float ... so compared to ACTUAL CONTACT... yes it is for all intent and purposes a frictionless environment ... can't forget the spinning disks either they cause the air to move inside the drive as well (thus the cushion of air between the heads and platters)

@arcanum-a 3 жыл бұрын

Wow this was amazing

@OscarLodge 12 жыл бұрын

Very good... Iv'e always wondered how the HDD works... some staggering facts there too.. brain baffling .. Cheers. !

@cursory9031 Ай бұрын

props to my lecturer for sending us this video

@PudgyOrange 12 жыл бұрын

great video!

@MUSICWORLD-rg4uk 2 жыл бұрын

What is the mechanism that use to prevents the head crashing on the disk?

@tristantrezise5102 7 жыл бұрын

this is pretty nifty

@slapshotjack9806 2 ай бұрын

It’s insane how people have manipulated things like this to even function

@mixeddreams8731 3 жыл бұрын

It's fascinating.

@andresbudihardja 3 жыл бұрын

if HDD head problem can solved ? i have drive can detect but not spin & incorrect function message after choose initialize disk use MBR in disk management

@xmdude626 8 жыл бұрын

The question I have is, how do all these tiny magnetized particles stay perfectly lined up don't jump or move around since we know that like poles repel and opossite poles attract.

@christianaranda9426 5 жыл бұрын

There's a layer on what they called heads or what we called slider. Maybe can see it with a 400x magnification.

@_tanzil_ 3 жыл бұрын

*I wonder who is that genius made the hard disk 💿 first time* Salute to him..😎

@atillaattila8900 4 жыл бұрын

Thanks for good information

@DonaldMurf 2 жыл бұрын

I went and found this because in 2021 my DF teacher was using folded paper towel and a dry erase marker to try and explain how mechanical hard drives work. Man, what value I get for all the tuition I pay...

@faltolegends5768 6 жыл бұрын

Its really amazing and informative one

@jnc5255 2 жыл бұрын

This is so Awesome thank u ❤️❤️❤️❤️

@batvenio3533 6 жыл бұрын

It is really unbelievable :)

@rencrawx9491 3 жыл бұрын

I had this urge to disassemble my hard disk upon watching this video

@ocheinoderrick5620 3 жыл бұрын

I have a habit of cooling down my external hard disks using a cold wet towel. It really works well. Temperature can drop from 52'c to 42'c in just 3 minutes. Is this method safe for the hard disk?

@Awcator Жыл бұрын

What an engineering marvel

@AngusMcDonald 10 жыл бұрын

great video

@serialglobetrotter 9 жыл бұрын

difference between constant angular velocity and multiple zone recording???

@taniyadiwyanjali306 2 жыл бұрын

1. What is the part of the name, that holds the Read write head? 2. What is the mechanism that use to prevents the head crashing on the disk? 3. What is the mechanism that used to move the actuator arm? 4. Each Track Divided in to? 5. Each 1 or 0 is Called a type of? 6. What is the main mechanism that use in the hard disk? can you answer the questions I ask ?

@Ahamed-gk1hh Жыл бұрын

can you help me in this to answer

@FALLENN7 12 жыл бұрын

Awesome vid :)

@Daniel_Page 2 жыл бұрын

and this is just the beginning

@Bianchi77 3 жыл бұрын

Nice video, thanks :)

@demogaming8895 2 жыл бұрын

"speed that defies comprehension" and yet, now it's one of the slower storage types

@PinoyPogiman 12 жыл бұрын

So thats why i feel my 5th gen Ipod classic vibrating

@Pratik9028 6 жыл бұрын

Great video..... 👍

@DaveBabler 8 жыл бұрын

This is great but it really needs to be updated for proper HD viewing.

@papalouie5517 3 жыл бұрын

Dude this was 11 years ago

@Bandicoot803 15 жыл бұрын

A cigarette smoke particle does NOT fit in the space between read/write heads and platter, it would easily jack up the head.

@xJaAviiEeR 5 жыл бұрын

"....BIT... BY BIT..." worth the watch till the end

@msgsgt 12 жыл бұрын

if i didn't know better i would think that steven job and gates were aliens

@kona702 9 жыл бұрын

Wow the 747 analogy made me chuckle...what an EXTREME example of scale comparison. You have to be realistic and to scale for these types of comparisons...

@luckycat5107 8 жыл бұрын

because the read write head only floats nanometers above the disk and because the read write head is smaller than a piece of Hare and because of the speed the read write head is heavier than it looks also because of the positive and negative which represents on and off or one and zero which the computer can understand

@jamestam4654 8 жыл бұрын

Really good

@javadkazemi9913 2 жыл бұрын

hello I have a scartched hard disk platter problem. my hard disk is wd 4 tb.could you please recommend to me a service place to repair the hard disk? Tanks

@hcury1960 4 жыл бұрын

Great video. ⭐⭐⭐

@peterkago7228 3 жыл бұрын

I once disassembled a hard disk and still have the disc and circuit board

@S93OT 2 жыл бұрын

Does anyone have the transcript for this video?? I need it for IT Project at my college!

@shazan18 Жыл бұрын

esoft guys 🙋‍♂

@Thariya73 3 ай бұрын

😂❤

@haroldplaysminecraftharold8274 7 жыл бұрын

So basically, hard drives are like old jukeboxes from the '90's(or '80's) but with a circuit board that keeps the 'disk' rotating every minute without stopping (except without electricity), btw i have a question, does overclocking a hard drive speeds up its spinning speed? just asking..

@abdushmul Жыл бұрын

fucking jump scare in the end of an unholy vacuum cleaner.

@abundantharmony 2 жыл бұрын

How did you post this without a strike?

@hotswap_tofu5087 3 жыл бұрын

So that is why hdd sounds like a jet. With 100,000 passengers

@limitless1692 7 жыл бұрын

is is the best video aboud hdd by far

@mrwoodcat 5 жыл бұрын

from what show is this ?

@incubusholic 12 жыл бұрын

@voidofdeath dude, that video said, "One high quality photo can take up 29 million bits" the right math is 29000000/1024/1024 = 27.65 KB 1 KiloByte = 1024 Byte 1 Byte = 1024 Bit

@pabodhafernando3791 2 жыл бұрын

@thidastheekshana7358 10 ай бұрын

Anzwers

@chanidunimsara905 9 ай бұрын

😂

@emiro802 Ай бұрын

Esoft campus tutorial questions 😁

@oliver24x 12 жыл бұрын

What program was it from

@user-ml8qo4wy6i 8 күн бұрын

I have a disk that makes a clicking sound and is not recognized by the computer. What is the solution?

@vivaxpro1594 6 жыл бұрын

Who made this..... This is crazyyy

@devonds3388 Жыл бұрын

Thank you from esoft ja ela😌

@user-xf8or5lj6d Жыл бұрын

👍

@GamerDave1974 11 ай бұрын

Ahh nostalgia

@ScottieNiven 15 жыл бұрын

I watched this recently on How Does It Work on Discovery Channel

@shotaaizawa2730 4 жыл бұрын

Amazing

@MyBuxJT 12 жыл бұрын

how are the bits made when its too small for us to even see or do anything to make it

@aemilious6267 4 жыл бұрын

I’m astonished 😮 wooowww 😍😍

@cyclops8238 6 жыл бұрын

We never got to know what was coming up next 🙂😔

@connorwiebe611 10 жыл бұрын

i still dont understand how 1s and 0s actually take up physical space

@connorwiebe611 9 жыл бұрын

why cant an infinite number of 1s and 0s fit into one "magnetic cell"?

@connorwiebe611 9 жыл бұрын

why do they store the 1s and 0s in magnetic cells? Why can they only hold one 1 or 0?

@HighAway 9 жыл бұрын

n00b_asaurous excellent answer. it made so much sense if you look at how you write code in C++

@mariusfacktor3597 9 жыл бұрын

Connor Wiebe They are interpreted into 1s and 0s at a different hardware component. At the disk hard drive the only thing that is imposed or read is the positive or negative (or north or south) charges of magnets. The atoms of the disk orient their positive side towards the head component when the head has a negative charge. The atoms stay in this orientation so that they can be interpreted as positive facing or negative facing until they are rewritten. The positive or negative (also called north or south) is what becomes the 1s and 0s later. You can't get more than two outcomes with magnets. It's either positive or negative so computers decide 1 or 0.

@khushalashani 7 жыл бұрын

Bravo for the explanation!, I study Computer Science and found this enjoyable to read.

@chandanwaila9134 6 жыл бұрын

very helpful

@axelkakasho 11 ай бұрын

Ant to think that nowadays this thing is considered slow.

@KiwiPowerNZ 11 жыл бұрын

even 60 years in the future there will only be boring SSDs with no moving parts :( and you'll be saying, back in my day your files were stored on magnetic disks!