How do Hard Disk Drives Work?

WHAAAAAAAAT THEEE HEEELLLLLLL?? how did we even come up with this??

60 y ago there wouldn't be any computer reading today's disks!

bad sectors was not mentioned.

This is ridiculously complicated and insanely brilliant. Thank you so much for the detailed explanation. Your presentations skills are extraordinary. Even the sponsorship part of the video looks informative. Thanks again for the video.👍🏽👍🏽

Many of us have seen this technology be born and probably we'll see it get lost in the past, because now we have solid state drives.

Most average disks spin at 5400 rpm not 7200 rpms. 😷

Wow

Good explanation helpfull video support Sir Thanks 🎉🎉🎉🎉🎉🎉🎉

Who ever came up with all that stuff what ever they was smoking I need some of that shit

incredible !

It's amazing technology !!! I have loads of equipment that contains hard drives, and none of them have ever gone wrong !!!

Old tech now

This type of I want learning from childhood.

SMR is crap unless you want to archive large amounts of data cheaply.
However, how Western Digital and Seagate hid the truth about the disadvantages of this technology and the drives using it is simply outrageous and we will never forget it!

This is totally outstanding. I think personally, that today in our high schools, that a video such as this needs to be presented for 1 week in algebra classes ( algebra 1 is fine ).

While the workings of the disc are fine, I would add more information about the size of the individual items like how many nm wide are the tracks, how big is a sector, how many 1's and 0's can be stored in each sector, and things like the size of the read/write head.

Then start having the students scale up said dimensions to a size that we can relate to. Show to students just the immense complexity that drives our modern world. So many people get pissed off when their phones or some gadget goes THUD, and just go off the deep end. If people understood the science and construction of said items they'd find the nearest engineer and hug them instead of whining.

Somewhere in some book I saw this "SCALING" illustrated but it was 20 or so years ago. Maybe you could make a part 2 with this information.

Like for example the 15 nm read/write head height would be around 1 ft if it was scaled up 1,350,000 times. Then take that and scale up all the sized and speeds that the platters spin past the head etc etc etc and people will get a semblance of just all of the human knowledge that's poured into our gadgets. Instead of flying off the handle ... maybe power cycle said gadget and calm down. LOL

No matter how many times i watch these videos i just dont get it its pure witchcraft

We need to make a better hard drive these ones are too slow to start up recording we need digital technology than a hard drive it takes forever to start up recording

How do you remove data from a hard drive ? asking for a friend .

Thanks for making content like this

What happens when it's faulty and makes it write disk error

When my older brother got his first job in the '70s with IBM, he explained the workings of an early disk (platter) disk drive. I was about 12. I immediately recognized and said, "Nah, that's never going to work. Boy, was I wrong!

And what happen with the ssd?

Why don't they create Bigger size HDD for more TBs instead of shrinking size of sectors

Very well understood. You are the best tutor❤

are you sure the LEAF named 'A Person' was actually a person? i am suspicious haha

why are you doing a video about a type of hard drives they stopped using 10 years ago?

The quality of the animation is GREAT!

I'm a lifer in electrical and understanding not only components but also diagnosis of those components. this video is just icing to me. thanks for the effort! Well made! Much appreciated. for the most part. I love how all components aren't as "scary/mysterious" once we understand the parts.

Sir I have a DDR3 Hare disc and that has been corrupted. nobody is able to extract Data from it.. how can I extract data.

Goodness, there is tons . more engineering & research than I previously thought. This was a supremely well made and spoken video. Bravo! 🎊

soo mutch new information for me thank u very mutch <3

This is the first time I'm learning anything about computer hardware and I couldn't take my eyes off the screen! I must've been grinning like an idiot from ear to ear at how amazing computers really are and just how insanely complex! This video was incedible! phenomenal explanations and animations!

Thank you so much ❤

To think that my first HDD was 20MB...

Just... amazing content

this is some serious quality explanation video 😮 thank you

maravillosa explicación y muy bueno con la animación

WOW! We are clever apes.

Absolutely magnificent!! Your animations will help visualise complicated micro/nanoscopic technology for generations. Don't underestimate the reach of your work :) P.s it would be awesome if you help demistify the circuitry inside led screens and monitor controllers that take standard signals from the cpu/gpu (VGA/HDMI ecc) and turn them into light that our eyes can see :)

I haven’t watched this fully yet, but is there a video that discusses SSDs?

JMD 24

amazing

dude its just gnomes in there
what a waste of time

I feel like I should be watching this from school. It's got the exact pacing of the videos we'd watch in science class

What is the theoretical size limit on this? Would you be able to switch the magnets and read them atom by atom instead of bit by bit reliably in some way with better technology?

Will a HDD work in the vacuum of space?

The fact thatthis technology is quite old ,its almost frightning

Just one moment, how the head have time to do magnetic or non magnetic at 7200rpm