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How do hard drives work? - Kanawat Senanan

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The modern hard drive is an object that can likely hold more information than your local library. But how does it store so much information in such a small space? Kanawat Senanan details the generations of engineers, material scientists, and quantum physicists who influenced the creation of this incredibly powerful and precise tool.

Besides areal density, what are other considerations end-user would want from a hard drive. Consider these applications: bank main frame, library archive, company server, home PC, laptop, portable music player and media streamer. Should different applications require different types of hard drives? Why or why not?

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TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Kanawat Senanan
  • Animator Franz Palomares
  • Composer David Obuchowski
  • Script Editor Alex Gendler
  • Narrator Addison Anderson

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