Tag: computer data storage

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It is allowed on all hands, that the primitive way of breaking eggs before we eat them, was upon the larger end: but his present Majesty’s grandfather, while he was a boy, going to eat an egg, and breaking it according to the ancient practice, happened to cut one of his fingers. Whereupon the Emperor […]

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How to Build a Computer 23: Magnets

 

Hard Disk Drives record data using a technology long known to baffle juggalos. The read/write head uses magnets to store information on those disks. How? Why? What does that even mean? Let’s jump in.

What makes a magnet a magnet? Moving electricity. When you get down to the atomic level atoms are magnetic because their electrons are spinning. Glomp a bunch of those atoms together (like sticking magnets one to another) and you have a grain. Get enough grains lined up in the same direction and you have a permanent magnet.

How to Build a Computer 22: Hard Disk Drives

 

We’re going to take a jaunt entirely out of sequence here, moving from circuits and silicon into larger scale components. Today we’re talking about hard disk drives. Why? Because it’s a fun and interesting technology, because I know a thing or two about it from first-hand experience, but mostly because I’ve got a book to return. And so we’ll take a quick dive into the world of hard disk drives to see what, as the bear over the mountain intended, we can see.

An example HDD. Entirely too dusty to be functional.

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https://www.wired.com/story/google-internet-traffic-china-russia-rerouted/ Google Internet Traffic Wasn’t Hijacked, But It Was Out of Control from the Wired magazine article:FOR TWO HOURS Monday, internet traffic that was supposed to route through Google’s Cloud Platform instead found itself in quite unexpected places, including Russia and China. But while the haphazard routing invoked claims of traffic hijacking—a real threat, given […]

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