HDD technology, or Hard Disk Drive technology, is a method of storing digital data using magnetic disks. These disks spin at high speeds, allowing a read/write head to access and record information. HDDs are commonly used in computers and servers due to their large storage capacity and cost-effectiveness compared to other storage types. The basic components of an HDD include the platters, which hold the data, and the actuator arm, which moves the read/write head. While HDDs are reliable for long-term storage, they are generally slower than Solid State Drives (SSDs) because of their mechanical parts.