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We’ve all done it – deleted files when we didn’t mean to. Whether it’s accidentally dropping them in the Recycle Bin, hitting Delete instead of Save or deleting something in DOS without thinking things through first, we’ve experienced that jaw-dropping realisation that we’ve lost work. And you may have experienced even more horror at a hard-drive crash.

However, it’s very rare that those files are completely deleted for good. Even when something really catastrophic does happen – that is, your hard drive seizes – there are professionals that can work digital miracles on your equipment to resurrect the data.

Source: http://support.microsoft.com/kb/835840/en-gb

Data recovery is the process of salvaging data from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally. Often the data are being salvaged from storage media such as internal or external hard disk drives, solid-state drives (SSD), USB flash drive, storage tapes, CDs, DVDs, RAID, and other electronics. Recovery may be required due to physical damage to the storage device or logical damage to the file system that prevents it from being mounted by the host operating system.

The most common “data recovery” scenario involves an operating system (OS) failure (typically on a single-disk, single-partition, single-OS system), in which case the goal is simply to copy all wanted files to another disk. This can be easily accomplished using a Live CD, many of which provide a means to mount the system drive and backup disks or removable media, and to move the files from the system disk to the backup media with a file manager or optical disc authoring software. Such cases can often be mitigated by disk partitioning and consistently storing valuable data files (or copies of them) on a different partition from the replaceable OS system files.

Source: http://en.wikipedia.org/wiki/Data_recovery

A hard disk drive (HDD) is a data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material. An HDD retains its data even when powered off. Data is read in a random-access manner, meaning individual blocks of data can be stored or retrieved in any order rather than sequentially. An HDD consists of one or more rigid (“hard”) rapidly rotating discs (platters) with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces.

Introduced by IBM in 1956, HDDs became the dominant secondary storage device for general purpose computers by the early 1960s. Continuously improved, HDDs have maintained this position into the modern era of servers and personal computers. More than 200 companies have produced HDD units, though most current units are manufactured by Seagate, Toshiba and Western Digital. Worldwide revenues for HDDs shipments are expected to reach $33 billion in 2013, a decrease of about 12% from $37.8 billion in 2012.

The primary characteristics of an HDD are its capacity and performance. Capacity is specified in unit prefixes corresponding to powers of 1000: a 1-terabyte (TB) drive has a capacity of 1,000 gigabytes (GB; where 1 gigabyte = 1 billion bytes). Typically, some of an HDD’s capacity is unavailable to the user because it is used by the file system and the computer operating system, and possibly inbuilt redundancy for error correction and recovery. Performance is specified by the time to move the heads to a file (Average Access Time) plus the time it takes for the file to move under its head (average latency, a function of the physical rotational speed in revolutions per minute) and the speed at which the file is transmitted (data rate).

The two most common form factors for modern HDDs are 3.5-inch in desktop computers and 2.5-inch in laptops. HDDs are connected to systems by standard interface cables such as SATA (Serial ATA), USB or SAS (Serial attached SCSI) cables.

Source: http://en.wikipedia.org/wiki/Hard_disk_drive

Hard disk failures are so common that data recovery is a multi-billion dollar industry. If you need to recover deleted photos, have a hard drive repair, or retrieve data for a business, a data recovery service can help to deal with the panic of losing files and information. Learn how to find a data recovery service and retrieve lost information for peace of mind. Have a question? Get an answer from Our Data Recovery Experts now!

Source: http://www.ehow.com/how_6377363_data-recovery-service.html

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Norwich is a city on the River Wensum in England. It is the regional administrative centre and county town of Norfolk. During the 11th century, Norwich was the largest city in England after London, and one of the most important places in the kingdom. Until the Industrial Revolution, Norwich was the capital of the most populous county in England[2] and vied with Bristol as England’s second city.

The urban or built-up area of Norwich had a population of 213,166 according to the 2011 Census.[3] This area extends beyond the city boundary, with extensive suburban areas on the western, northern and eastern sides, including Costessey, Taverham, Hellesdon, Bowthorpe, Old Catton, Sprowston and Thorpe St Andrew. The parliamentary seats cross over into adjacent local government districts. 132,512 (2011 census) [4] people live in the City of Norwich and the population of the Norwich Travel to Work Area (i.e. the self contained labour market area in and around Norwich in which most people live and commute to work) is 282,000 (mid-2009 estimate) [2] . Norwich is the fourth most densely populated local government district within the East of England with 3,480 people per square kilometre (8,993 per square mile).

Source: http://en.wikipedia.org/wiki/Norwich