![]() ![]() Over time, those vibrations will make the drive slower and, eventually, cause it to fail. The spinning disks inside are sensitive, and the fact that they’re spinning creates vibrations. Speed is a major concern with spinning disks, as it takes time for the heads of the drive to find the data on the disk. That said, the dated tech has rough edges. That innovation has allowed drives with increased capacity to get cheaper and smaller, which is ideal for external disks. ![]() Spinning drives have been around for decades, moving from under four megabytes in 1957 to 16 terabytes in 2019. That approach to storage has one major upside: it’s cheap. The read and write heads can jump to different points on the disk to read the data that’s on stored there or write new data to it. Though not the same tech, a good way to think about a spinning hard disk is like a vinyl record. Those disks spin around and a needle head reads data from different points on the disk. In our external hard drive rankings, we refer to this type of disk as “spinning.” That’s because the data you’re storing is written to and read from a series of disk-like platters that are nestled inside the enclosure. The most common hard drive you’ll come across is an HDD. Just as floppy disks and hard drives perform the same function in different ways, hard disk drives and solid-state drives do the same thing. They’re often determined by the drive itself. Factors such as the size, speed and interface are not isolated variables. ![]()
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