If you look for a desktop or laptop PC, you’ll see that with very few exceptions, the hard disk drive (HDD), which has served us for decades, is no longer offered as an internal storage medium. Instead, these PCs come with solid state drives (SSDs) with capacity of 120 GB, 250 GB, and more. It would be easy and even logical to assume that HDD storage has been made obsolete by SSDs, just like vinyl disks, CDs, DVDs, and other volatile and non-volatile storage schemes. That assumption would be wrong.