hard disk drive : (Winchester drive)
It is heart of the computer. Shard disk drive (HDD) is a data storage device used for storing and retrieving digital information using rapidly discs (platters) coated with magnetic material. An HDD retains it's data even when powered off. Data is read in a random-access manner, meaning individual blocks of data can be store or retrieved in any order rather than just sequentially. An HDD consists of one or more rigid ("hard") rapidly rotating discs (platters) with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces.
It is heart of the computer. Shard disk drive (HDD) is a data storage device used for storing and retrieving digital information using rapidly discs (platters) coated with magnetic material. An HDD retains it's data even when powered off. Data is read in a random-access manner, meaning individual blocks of data can be store or retrieved in any order rather than just sequentially. An HDD consists of one or more rigid ("hard") rapidly rotating discs (platters) with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces.
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