Every computer in the world has a hard drive, but do you know exactly does it works? You may be surprised to learn it’s essentially just a tiny arm that reads and writes on a disk spinning hundreds of times per minute.
It is always amazing to see how things work. The gadgets out there really baffle the mind at times. One wonders what goes on behind the scene so-to-speak. Here is a video bound to raise the interest of the curious out there.