![]() As the head passes over each section of the drive, any change in the magnetic direction will cause a voltage spike, creating a 1. The hard drive reads and writes data by changing the magnetic polarities on the drive. ![]() Each have the same purpose, but they function in completely different ways. There are two types of hard drives out there: Hard Disk Drives (HDD) and Solid State Drives (SSD). It is one of the most important parts of the computer and without it, you really couldn't do anything. This includes all of your documents, pictures, movies, music, applications, and even OS X itself. The hard drive is a piece of hardware inside your computer that stores all your data. In this tutorial, I will go over how a hard drive works, how to fix common hard drive problems, and end with a discussion on filesystems and how to use them. The hard drive is where all the data on your computer is stored, so when it stops working it can be a bit scary. ![]() ![]() Hard drives: they are one of the most important pieces of hardware in your computer, and also the source of most problems you will encounter. ![]()
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