SSDs are built around a circuit board using NAND chips that needs power to stay active and function. HDDs rely on spinning disks to store data.
HDDs use mechanical read-write heads, and SDD’s use electronic read-write heads.
HDDs need physical movement for the read/write process, while SDD’s can include nonvolatile memory with flash technology.
HDDS are used in most personal computers because they are less expensive than SSDs, but take up more space both internally of externally with an added cost of battery life due to their mechanical parts requiring power for operation.
SSDs have advantages including faster access time and better input/output data transfer rates through the elimination of moving parts like disk drives.
HDDs and SSDs both use durable storage technologies to store your data, but they do it in different ways requiring the understanding of their function to determine which storage device is right for your requirements.