HDD

The hard disk drive (HDD) is still one of the most important magnetic storage devices in computer technology (along with the SSD). The HDD uses magnetization technology to store a wide variety of data on rotating disks. The disks in the HDD are directly on top of each other. Like the pickup on a record player, the hard disk drive has a small actuator arm. This is part of the read and write head. However, when reading and writing data on the HDD, the actuator arm moves back and forth and jumps to the required storage location on the HDD, unlike the record pickup. The HDD is slower than a SSD, but it usually has a much longer lifespan than a SSD.