A primary computer storage device, which spins, reads and writes one or more fixed disk platters. The terms "hard drive" and "hard disk" are synonymous; however, a "drive" technically refers to the ...

A hard drive, also known as a hard disk drive, is a storage device used on many computers. A hard drive consists of spinning platters that store digital information read by fast-moving read/write ...

(2) A magnetic disk drive that plugs into a USB port on a computer. Used for transport as well as backup and additional storage, portable hard drives rival the capacity of many internal hard drives.