A hard disk drive (HDD), commonly referred to as a Hard Drives, Hard Disk, fixed disk drive or Hard Disk Drive, is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. Strictly speaking, "drive" refers to a device distinct from its medium, such as a tape drive and its tape, or a floppy disk drive and its floppy disk. Early HDDs had removable media; however, an HDD today is typically a sealed unit (except for a filtered vent hole to equalize air pressure) with fixed media.
A HDD is a rigid-disk drive, although it is probably never referred to as such. By way of comparison, a so-called "floppy" drive (more formally, a diskette drive) has a disc that is flexible. Originally, the term "hard" was temporary slang, substituting "hard" for "rigid", before these drives had an established and universally-agreed-upon name. Some time ago, IBM's internal company term for an HDD was "file".
HDDs (introduced in 1956 as data storage for an IBM accounting computer) were originally developed for use with general purpose computers.
Hard Disks or Discount Drives or Cheap Drives are easily availlable at low prices and you can buy them easily from Discountechnology.
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