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data storage devices click to hear : data storage devices

Electronic devices used to record or save data on a magnetic or optical medium.
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hard disk drive disk disk motor actuator arm motor read/write head actuator arm

hard disk drive click to hear : hard disk drive

Device integrated into the computer that reads and writes data on the hard disk inside the case.

disk click to hear : disk

Rigid magnetic medium that is mounted on a central axis; its surface is divided into tracks and sectors on which data are written.

disk motor click to hear : disk motor

Device that converts the electric energy powering it into mechanical energy so that disks can rotate at several thousand revolutions per minute.

actuator arm motor click to hear : actuator arm motor

Device that converts the electric energy powering it into mechanical energy to move the actuator arm according to the computer’s instructions.

read/write head click to hear : read/write head

Device used to extract stored data from a disk or to write new data on a disk.

actuator arm click to hear : actuator arm

Movable arm bearing the read/write head; it moves the head across the surface of the disk.