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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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Portsmouth is the second largest city in the ceremonial county of Hampshire on the south coast of England. Portsmouth is notable for being the United Kingdom’s only island city; it is located mainly on Portsea Island.[2] It is situated 64 miles (103 km) south west from London and 19 miles (31 km) south east of Southampton.

As a significant naval port for centuries, Portsmouth is home to the world’s oldest dry dock still in use and also home to some famous ships, including HMS Warrior, the Tudor carrack Mary Rose and Lord Nelson’s flagship, HMS Victory. Although smaller than in its heyday, the naval base remains a major dockyard and base for the Royal Navy and Royal Marine Commandos whose Headquarters resides there. There is also a thriving commercial ferryport serving destinations on the continent for freight and passenger traffic. The City of Portsmouth and Portsmouth Football Club are both nicknamed Pompey. It is also well known for being ‘the most haunted place in Hampshire’.[citation needed]

The Spinnaker Tower is a striking recent addition to the city’s skyline. It can be found in the redeveloped former HMS Vernon, formerly a shore establishment or ‘stone frigate’ of the Royal Navy, now an area of retail outlets, restaurants, clubs and bars now known as Gunwharf Quays.

The City of Portsmouth has a population of 207,100 and is the only city in England with a greater population density (5,145 /km2 (13,330 /sq mi)) than London (4,984 /km2 (12,910 /sq mi)). The Portsmouth Urban Area, which includes Fareham, Portchester, Gosport and Havant, is the 13th largest urban area in the United Kingdom and the largest in Hampshire, with an estimated 520,000 residents according to the 2011 Census. Portsmouth combines with Southampton to form a single metropolitan area with a population over a million, one of the United Kingdom’s most populous metropolitan areas.

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