What does the acronym HDD stand for?

The acronym HDD stands for Hard Disk Drive. This term refers to a type of storage device that uses magnetic storage to store and retrieve digital information. Hard disk drives are commonly used in computers and servers to provide a large amount of data storage capacity, making them ideal for saving operating systems, applications, and user data.

Unlike solid-state drives (SSDs), which use flash memory and have no moving parts, HDDs have spinning disks or platters and read/write heads that access data. This technology has been foundational in data storage for several decades, making the understanding of terms like HDD essential for anyone studying computer hardware. Other options provided are not recognized terms used in computing, which further emphasizes that Hard Disk Drive is the accurate definition of the HDD acronym.