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what is hard disk and its type

hard disk

A hard disk drive (HDD), hard disk, hard drive or fixed disk is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.
hard disk

types of a hard disk


Currently, we can group hard drives into 5 types:
  • Parallel Advanced Technology Attachment (PATA)
  • Serial ATA (SATA)
  • Small Computer System Interface (SCSI)
  • Solid State Drives (SSD)
  • AND ID hard disk this is not in use now






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