A hard disk drive (HDD), hard disk, hard drive, or fixed disk [a] is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material.

HDD is a common abbreviation that stands for Hard Disk Drive. HDDs are non-volatile storage devices, meaning they retain stored data even when power isn't being supplied. How does a hard drive work? An HDD includes two main elements: a spinning platter and an actuator arm.

2024年4月30日 · HDD is a hard disk drive, which stores data on a spinning disk. SSD is a solid state drive, which stores data on a chip. SSD is faster and more durable than HDD.

Whether you're adding a hard drive to your desktop or laptop, increasing your gaming PC capabilities, connecting Network Attached Storage (NAS) to your system, or picking a backup drive, finding the best solution comes down to two fundamental factors: capacity and speed.

HDDs are used either as the primary or secondary storage device in a computer. They are commonly found in the drive bay and are connected to the motherboard via an Advanced Technology Attachment, Serial ATA, parallel ATA or Small Computer System Interface (SCSI) cable, among other formats.

2023年9月19日 · A hard disk drive (HDD) is a hardware device used to store information like software and files. The primary hard disk in a PC is often the C drive.

2025年3月5日 · We recommend the best hard drives for every need and budget based on our extensive lab tests.