a hard disk drive (10) whose size is 15 inches long, 4 inches wide and 0805 inches high, is described. the disk (10) includes a cover (14) for engaging with a base (12) to form them in a regulated environment isolated from the ambient air conditions.a storage medium, comprising a single magnetic metallic disc (22) with a core (21) in the middle of a plurality of concentric tracks on the rotating base is mounted to the interior (12) of the regulated environment.an element (20) for rotating the storage medium around an axis passing through its center, preferably consisting of a motor shaft (20), a control is also mounted on the base (12).the transducer (60), the number of a disk surface and used to read and write information to the disk (22) are mounted on an actuator (50) with the transducers (60) on a selected disk concentric tracks) (22).a printed circuit board (pcb) plate (15) provides control signals to the motor axis (20), the transducers (60) and the actuator (50) in order to allow selective access to the stored data.
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