A hard disk is a device that is used to store large amounts of data in a computer system. Hard disks differ from other memory because they are non-volatile, they retain the data even when they do not have power.
http://wiki.answers.com/Q/What_is_the_function_of_a_har...
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2. If the disk-drive has function to automatically got to track zero on powerup, you have to disable that option unless you want to use that option and the track zero detectio in your project. This option can be found from modern disk-drives, but old drives does not have it.
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www.epanorama.net/circuits/diskstepper.html
www.epanorama.net/circuits/diskstepper.html
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A new definition of mobile external drives satisfying both style and function; ... Best-fit-combination of high capacity, data reliability and solid performance meets all your computing needs.
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www.samsung.com/Products/HardDiskDrive/utilities/hutil....
www.samsung.com/Products/HardDiskDrive/utilities/hutil.htm
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The following sections in this chapter describe the function and physical components of the D–brick. These sections also explain how to operate, how to add and replace disk drive modules, and how to troubleshoot the D–brick:
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techpubs.sgi.com/library/dynaweb_docs/hdwr/SGI_EndUser/...
techpubs.sgi.com/library/dynaweb_docs/hdwr/SGI_EndUser/books/Origin_3K_OG/sgi_html/ch08.html
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The longer life of a hard drive is also a function of the disk drive's read/write head: in a hard disk drive, the heads do not contact the storage media, whereas in a floppy drive, the read/write head does contact the media, causing wear.
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members.tripod.com/pcmuseum/storage.html
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In hard disk drive actuators, Φ is a function of θ, and θ is a function of time. Therefore, the time-varying flux in a coil causes a potential v(t) to appear across the terminals according to the equation: ##EQU6##;
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www.patentstorm.us/patents/6196047-description.html
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The present invention relates to an optical disk drive, and more particularly, to an optical disk ... That is, since the edge of the optical disk D contacts the disk stopper 300, where the tray 200 slides in, a static electricity of the optical disk D can be removed by providing a ground function to the disk stopper 300.
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www.patentstorm.us/patents/6947355-description.html
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An optical disk drive includes a case, a tray which is slidably provided to the case and receives ... That is, since the edge of the optical disk D contacts the disk stopper 300 , where the tray 200 slides in, a static electricity of the optical disk D can be removed by providing a ground function to the disk stopper 300 .
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www.freepatentsonline.com/6947355.html
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Solid-state drive - Wikipedia, the free encyclopedia
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A solid-state drive ( SSD ) is a data storage device that uses solid-state memory to store persistent data. An SSD emulates a hard disk drive interface, thus easily replacing it in most applicatio...
en.wikipedia.org/wiki/Solid-state_drive
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