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Get Educated on Hard Disk Drives in this Video

By - Source: Tom's Hardware US | B 20 comments
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The engineering marvel that is your HDD.

Today we may be all about solid state flash memory for our storage needs, but there's a high chance that the majority of our data still resides on magnetic-based disk drives.

In fact, we've relied on hard disk drives and its magnetic genius to store our data for decades. Without storage, our computing experiences would be meaningless, like going through life unable to remember what you experienced just a second ago.

Bill Hammock, the "EngineerGuy", has created a new video in his YouTube series, and this one explains just how hard disk drives work. They're quite amazing pieces of engineering, even in today's world where SSDs are the new bleeding edge storage medium.

Check it out below:

How Hard Drives Work

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Top Comments
  • 11 Hide
    JOSHSKORN , June 13, 2011 12:44 PM
    We need a HDD that runs at ludicrous speed!!
  • 10 Hide
    alhanelem , June 13, 2011 11:03 AM
    pretty good video, and very informative too.

    I learned a few new things from it as well
  • 10 Hide
    sliem , June 13, 2011 3:35 PM
    *chuckles
    No it's giggitygiggitywatts
Other Comments
  • 10 Hide
    alhanelem , June 13, 2011 11:03 AM
    pretty good video, and very informative too.

    I learned a few new things from it as well
  • 7 Hide
    memadmax , June 13, 2011 11:35 AM
    Mr Fusion
  • 6 Hide
    N.Broekhuijsen , June 13, 2011 11:41 AM
    greghomeYes...........But does it run at 1.21 jiggowatts ?

    If we get a flux capacitor maybe it might need that :lol: 
  • 11 Hide
    JOSHSKORN , June 13, 2011 12:44 PM
    We need a HDD that runs at ludicrous speed!!
  • 1 Hide
    g00ey , June 13, 2011 2:03 PM
    I found some detailed data on 15 000 rpm drives using 2.5" platters,
    according to

    3.6*(15000/60)*2*pi*(2.5*2.54/2)/100/1.609

    their speed is up to 111 mph or 180 km/h.
  • -3 Hide
    dark_lord69 , June 13, 2011 2:52 PM
    greghomeYes...........But does it run at 1.21 jiggowatts ?

    You know that referance to Jiggowatts in that movie was supposed to be Gigawatts but they didn't know how to pronounce it. It's not some special unit of electricity its the Giga abrevation (same as gigabits or gigabytes) they just didn't pronounce correctly.
  • 8 Hide
    bogcotton , June 13, 2011 2:54 PM
    dark_lord69You know that referance to Jiggowatts in that movie was supposed to be Gigawatts but they didn't know how to pronounce it. It's not some special unit of electricity its the Giga abrevation (same as gigabits or gigabytes) they just didn't pronounce correctly.


    Pretty sure that's the joke...
  • 4 Hide
    fayzaan , June 13, 2011 2:58 PM
    dark_lord69You know that referance to Jiggowatts in that movie was supposed to be Gigawatts but they didn't know how to pronounce it. It's not some special unit of electricity its the Giga abrevation (same as gigabits or gigabytes) they just didn't pronounce correctly.


    lies! its jiggyjiggywatts!
  • 10 Hide
    sliem , June 13, 2011 3:35 PM
    *chuckles
    No it's giggitygiggitywatts
  • 1 Hide
    aoneone , June 13, 2011 3:43 PM
    I'm mad that the sequence voltage reading was wrong. Even though it was corrected. ^^
  • 3 Hide
    WR2 , June 13, 2011 4:01 PM
    Nice video, well done. Thanks for finding it for us.
  • 1 Hide
    masop , June 13, 2011 5:25 PM
    DSpider80 mph ?When this baby hits 88 mph you're gonna see some serious shit.


    LOL!!!!!!! Oh man, it's flashback time! Heh.
  • 2 Hide
    TheWhiteRose000 , June 13, 2011 6:25 PM
    Very informative.
    The guy did a good job explaining it.
    I now have a better understanding of Hard Drives.
  • 1 Hide
    ben850 , June 13, 2011 7:35 PM
    Magnets: How do they work?
  • 1 Hide
    Anonymous , June 14, 2011 12:27 AM
    Typo: it's not Bill Hammock but Bill Hammack.
  • 1 Hide
    plasmastorm , June 14, 2011 11:41 AM
    All good, But will it blend? :D 
  • 2 Hide
    NapoleonDK , June 14, 2011 10:38 PM
    dark_lord69You know that referance to Jiggowatts in that movie was supposed to be Gigawatts......they just didn't pronounce correctly.
    YOU ARE A LULZKILLER!!! D:<
  • 1 Hide
    fir_ser , June 15, 2011 8:27 AM
    Interesting and educational video.
  • 0 Hide
    mitmensch , June 17, 2011 3:10 PM
    This is a well made video, but the technologies described are completely obsolete.
    The inductive read element has been discarded in the 90s and the longitudinal media shown was replaced by 2006.
    Also PRML channels are long gone, actually they originally were created to boost phone line mode performance in the late eighties.
    Modern actuators combine VCM and piezzo technologies.
    Recent head technology actively manages fly height via thermal profile control.

    It's time for an update.