THE POWER SUPPLY UNIT

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      5.0                   HARD DISK DRIVES

      Hard Disk Drive (HDD) is a magnetic data storage device that is

connected to the motherboard via IDE or SATA cable. They are capable of

storing more data than the flash, zip or floppy drives. They are platforms that

allow the operating system of various vendors to be installed on the

computer system.




Fig 5.1: Hard Disk Drives


       A typical hard disk drive has two electric motors; a disk motor that

spins the disks and an actuator (motor) that positions the read/write head

assembly across the spinning disks. Hard Disk drives have capacities that

range from as low as 10GB to about 2TB.




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For more on hard disk drives you can visit:

www.splendidit.com/pcissues/harddiskdrives




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