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Topic: Hard disk

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  Hard disk - Wikipedia, the free encyclopedia
Hard disks are also found in network attached storage (NAS) devices, but for large volumes of data may be most efficiently used in a storage area network (SAN).
For many years, hard disks were large, cumbersome devices, more suited to use in the protected environment of a data center or large office than in a harsh industrial environment (due to their delicacy), or small office or home (due to their size and power consumption).
Most microcomputer hard disk drives in the early 1980s were not sold under their manufacturer's names, but by OEMs as part of larger peripherals (such as the Corvus Disk System and the Apple ProFile).
en.wikipedia.org /wiki/Hard_disk   (6551 words)

 Hard disk recorder - Wikipedia, the free encyclopedia
A hard disk recorder is a type of recording system that utilizes a high-capacity hard disk to record digital audio or digital video.
Hard disk recording systems represent an alternative to more traditional reel-to-reel tape or cassette multitrack systems, and provide editing capabilities unavailable to tape recorders.
Hard disk recorders are often combined with a digital mixing console and are an inherent part of a digital audio workstation.
en.wikipedia.org /wiki/Hard_disk_recorder   (518 words)

 Hard disk - Facts, Information, and Encyclopedia Reference article
The disk surface and the drive's internal environment must therefore be kept immaculately clean to prevent damage from fingerprints, hair, dust, smoke particles, etc. given the submicroscopic gap between the heads and disk.
Hard disks are also found in network attached storage (NAS) devices, but for large volumes of data are most efficiently used in a storage area network (SAN).
Before the early 1980s, most hard disks had 8-inch or 14-inch platters, required an equipment rack or a large amount of floor space (especially the large removable-media drives, which were often referred to as "washing machines"), and in many cases needed special power hookups for the large motors they used.
www.startsurfing.com /encyclopedia/h/a/r/Hard_disk.html   (4009 words)

 Hard Disk Platters Encyclopedia Article @ TheEntireWeb.com (The Entire Web)   (Site not responding. Last check: 2007-10-22)
A hard disk platter (or disk) is a component of a hard disk drive: it is the circular disk on which the magnetic data are stored.
In the hard disk drive the hard drive heads fly and move radially over the surface of the spinning platters to read or write the data.
A typical bit on a hard disk platter (in 2006) is about 200-250 nanometers wide (in the radial direction of the platter) and extends about 25-30 nanometers in the down-track direction (the circumferential direction on the platter), corresponding to about 100 billion bits (Gigabits) per square inch of disk area.
theentireweb.com /encyclopedia/Hard_disk_platters   (545 words)

 Hard Disk Sector Structures
Early hard disks had just a single one-sided platter, while today's hard disks are comprised of several platters with tracks on both sides, all of which comprise the entire hard disk capacity.
Early hard disks had the same number of sectors per track location, and in fact, the number of sectors in each track were fairly standard between models.
Early hard disks were extremely primitive, and their controllers weren't capable of handling complicated arrangements such as being able to change tracks.
www.dewassoc.com /kbase/hard_drives/hard_disk_sector_structures.htm   (2128 words)

 Hard Disk Encyclopedia Article @ HotAndCold.com (Hot and Cold)   (Site not responding. Last check: 2007-10-22)
The inside of a hard disk displaying the read/write head traveling over the platters.
In 2006, a typical workstation hard disk might store between 80 GB and 500 GB of data, rotate at 7,200 to 10,000 rpm, and have a sequential media transfer rate of over 50 MB/s.
Most of the world's hard disks are now manufactured by just a handful of large firms: Seagate, Maxtor (acquired by Seagate in 2006), Western Digital, Samsung, and Hitachi, the former drive manufacturing division of IBM.
www.hotandcold.com /encyclopedia/Hard_disk   (6612 words)

 Hard disk drive Help
The hard disk drive is the primary storage location where data is permanently stored.
The four main components of a hard disk drive are the platters, head arm, chassis, and the head actuator.
The majority of computer hard disk drives are permanently stored in an internal drive bay at the front of the computer and are connected with one ATA / SCSI cable and power cable.
www.computerhope.com /help/hdd.htm#support   (514 words)

 What is hard disk? - A Word Definition From the Webopedia Computer Dictionary
The term hard is used to distinguish it from a soft, or floppy, disk.
Hard disks hold more data and are faster than floppy disks.
In general, hard disks are less portable than floppies, although it is possible to buy removable hard disks.
www.webopedia.com /TERM/h/hard_disk.html   (544 words)

 LiveRepair.com | Encyclopedia | Hardware Tips | Hard Disk Space
Sufficient amount of free hard disk space is necessary for stable system operation, fast startup, multitasking, and processing large amounts of data.
If less than 30 MB of free disk space are left on the hard disk you might experience such problems as overall system slowdown, program hang-ups, or in extreme cases, system crashes.
Disk Cleanup lists different folders storing files that could be deleted without harm to your system including temporary files and temporary Internet files.
www.liverepair.com /encyclopedia/articles/diskspace.asp   (467 words)

 hard disk Computer Encyclopedia Enterprise Resource Directory Complete Guide to Internet   (Site not responding. Last check: 2007-10-22)
Most hard disks are permanently connected to the drive (fixed disks) though there are also {removable disks}.
High speed disks have an {access time} of 28 milliseconds or less, and low-speed disks run 65 milliseconds or more.
Disk drives are commonly characterised by the kind of interface used to connect to the computer, e.g.
www.jaysir.com /computer-encyclopedia/h/hard-disk-computer-terms.htm   (153 words)

 What is hard disk drive? - A Word Definition From the Webopedia Computer Dictionary
Hard disk drives (HDDs) for PCs generally have seek times of about 12 milliseconds or less.
There are several interface standards for passing data between a hard disk and a computer.
Hard disk drives are sometimes called Winchester drives, Winchester being the name of one of the first popular hard disk drive technologies developed by IBM in 1973.
www.webopedia.com /TERM/h/hard_disk_drive.html   (496 words)

 Diskology - Welcome
The Disk Jockey is the world's most affordable, portable hard disk duplicator and diagnostic product available for the IT professional, consultant, computer forensic examiner, or for anyone who spends a lot of time working with computers.
The Disk Jockey lets you mount drives to your desktop, mirror (RAID 1) or span hard disk drives, copy data between hard disks at lightning speeds, verify, test and erase hard disk drives.
The Disk Jockey hard drive duplicator works natively with any UDMA IDE hard disk drive and with the purchase of a separate adapter the Disk Jockey supports serial-ATA (SATA) hard disk drives.
www.diskology.com   (555 words)

 Hard Disk Drives
Hard disk drives are almost as amazing as microprocessors in terms of the technology they use and how much progress they have made in terms of capacity, speed, and price in the last 20 years.
The hard disk's performance is also critical when multitasking is being used or when processing large amounts of data such as graphics work, editing sound and video, or working with databases.
Finally, a full description is given of logical hard disk structures and the functioning of the FAT and NTFS file systems, by far the most popular currently used by PCs.
www.storagereview.com /guide2000/ref/hdd/index.html   (583 words)

 Hard Disk Recovery
Disk recovery specialists have no clue about the organization of graphic data inside of the AutoCAD DWG file and our DWG recovery wizards have just the basic, common knowledge of the logical / physical organization of data on the disk.
Therefore IntelCAD Systems is not fixing damaged hard disks, optical disks or magnetic tapes and a disk recovery company cannot do much with a DWG file that was rescued at OS level, but has, for example, a missing table of AutoCAD object handles.
When a disk recovery company is trying to rescue your disk, they try to put together pieces of files scattered all over the disk, using their knowledge of physical and logical data organization on the disk.
www.intelcad.com /pages/recover/disk.htm   (740 words)

 Hard-Disk Risk - CSO Magazine - April 2003
One key reason for today's poor disk sanitization practices is that it's very difficult to tell the difference between a disk that has been properly sanitized and one that's simply been reformatted.
Given the relatively low cost of hard drives, there is no reason not to physically cut up the hard drive being discarded, thereby removing the slightest doubt as to the security of the information contained therein.
However, if the data on the hard drive is the least bit sensitive, follow the lead of many defense contractors and send the drive through a metal chipper instead of letting it out of the organization (this prevents even sophisticated data recovery methods).
www.simson.net /clips/2003/2003.CSO.04.Hard_disk_risk.htm   (1978 words)

 Hard Disk - Howto
However the procedures I have followed may not work with another hard disk or machine or whatever, have the potential of trashing your hard disk and I cannot be held responsible in case of any loss or damage that may be caused by using these procedures.
Stan Brown had a page on hard disk partitioning that was very informative and gives good value for your time - it talks of partitions, the why and how of it.
A few times, I have given a format c: /u command by error on the wrong disk and realizing my mistake when the format has gone 60 or 70% I had pressed the panic button and noted with pleasant surprise that the hard disk was just the same as before I started the format operation.
members.tripod.com /~diligent/harddisk.htm   (4193 words)

 Computer Data Recovery Glossary - Hard Disk Recovery Services
Platter: A metal disk that is mounted inside the disk drive, and in most cases several platters are mounted on a single spindle or shaft creating more data storage surfaces while taking up less space.
Level 3 drives transfer data from all disks in parallel, which shortens the transfer times for applications that are read in large, sequential files.
Winchester disks: This is a former code name for an early IBM hard disk model that is sometimes still used to refer to hard drives in general.
www.harddiskrecovery.net /computer_glossary.html   (1853 words)

 hard disk - a definition from Whatis.com
A hard disk is part of a unit, often called a "disk drive," "hard drive," or "hard disk drive," that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces.
A hard disk is really a set of stacked "disks," each of which, like phonograph records, has data recorded electromagnetically in concentric circles or "tracks" on the disk.
A hard disk/drive unit comes with a set rotation speed varying from 4500 to 7200 rpm.
whatis.techtarget.com /definition/0,289893,sid9_gci212227,00.html   (252 words)

 Virtual Server: Virtual Hard Disk Image Format Specification
The ability to directly modify a virtual machine’s hard disk from a host server supports many interesting applications that may be of interest to customers.
Virtual machine hard disks are implemented as files that reside on a native host file system.
The user should also be familiar with hard disk technologies and should understand how data is accessed and laid out on a physical medium.
www.microsoft.com /windowsserversystem/virtualserver/techinfo/vhdspec.mspx   (498 words)

 Active@ Kill Disk Hard Drive Eraser. Low Level Format.   (Site not responding. Last check: 2007-10-22)
It's a hard drive and partition eraser utility.
If you use FDISK, FORMAT utilities, or DELETE standard operating system command for data removal, there is always a chance to recover deleted data (using undelete file or some data recovery software) and use against the owner's will.
We highly recommend you to run this FREE utility for the hard and floppy drives you want to dispose of, recycle, re-use, sell or donate to somebody.
www.killdisk.com   (303 words)

 Hard Disk Drives ( Hard Drives and HDD) Definition
Although the hard disk drive (often shortened to "hard drive") and the hard disk are not the same thing, they are packaged as a unit and so either term is sometimes used to refer …
HARD DISK DRIVES DEFINITION (continued): … In a personal computer, a hard disk drive (HDD) is the mechanism that controls the positioning, reading, and writing of the
Although the hard disk drive (often shortened to "hard drive") and the hard disk are not the same thing, they are packaged as a unit and so either term is sometimes used to refer to the whole unit.
www.bitpipe.com /tlist/Hard-Disk-Drives.html   (482 words)

 Install Hard Drive with Disk Manager® from Ontrack Data Recovery
Disk Manager® software, with more than 150 million copies sold, provides support for the latest disk drives and features to help you through the entire drive installation process – from correctly connecting the drive to your system – through complete electronic installation – to automatically migrating your files.
The exclusive Disk Manager “worry-free” installation and graphical interface intelligently and easily leads you through the entire process to install the hard drive.
Whether you are a computer professional or a novice user, it is simple to install any manufacturer’s hard drive with Disk Manager.
www.ontrack.com /diskmanager   (319 words)

 SAMSUNG’s Digital World - Hard Disk Drive / Utilities   (Site not responding. Last check: 2007-10-22)
In that case, the Disk Manager will solve the capacity barrier.
Disk Manager has found that the following drive is not set up for use
Select the hard drive you wish to set up from the drive list and press "Next" to continue.
www.samsung.com /Products/HardDiskDrive/utilities/index.htm   (411 words)

 Hard Drive Recovery by SalvageData - Server RAID Data Recovery
The fact is, whether it is a single hard disk drive or a multi-disk server RAID array, when a hard drive crash or media failure happens, the experts will tell you, the only way to recover is to salvage the data.
Our professional data salvaging and hard drive data recovery services for failed hard disk drives and Server RAID Data Recovery is second to none.
We salvage and recover data from virtualy every type of make, model and size of crash or failed hard disk drive and server RAID array configurations.
www.salvagedata.com   (339 words)

 Active@ Disk Image. Hard Drive Backup Software.   (Site not responding. Last check: 2007-10-22)
Using Active@ Disk Image you can perform backup of you PC system to another hard drive or to the network server storage and restore it from there back in the event of a system crash or loss of important information.
In case of dealing with disk containing accidentally deleted files you can use Active@ Disk Image to make an image of the disk (snapshot), from which you can later try to restore deleted file using data recovery utilities like Active@ UNDELETE or Active@ UNERASER without the risk of overwriting important data on original disk.
In case when your disk has started getting bad clusters (basically falling apart) you can effectively stop this process to preserve whatever readable as an image and try to restore data later.
www.disk-image.net   (390 words)

 Hard disk drive management software: partitioning manager and partition recovery tool
Acronis Disk Editor is a disk drive repair tool that allows you to perform advanced operations on your hard disk drive, such as restoration of boot records and hexadecimal editing
Acronis Disk Director Suite is the ideal tool in combination with Acronis True Image backup.
Acronis Disk Director Suite 10.0 adds new key features making it easier than ever before to modify your partition structure and boot new operating systems.
www.acronis.com /homecomputing/products/diskdirector   (451 words)

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