GB (Gigabyte) One gigabyte is 1,000,000,000 (one billion) bytes or 1000 (one thousand) Megabytes.

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Data Recovery Glossary (Letter G J K N O Q Z )

Survey data from companies that specialize in data recovery may be used to investigate the primary causes for how data actually gets lost.

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Causes Of Data Loss

Virus Scanner Software that is used to scan for and eradicate computer viruses, worms, and Trojan horses. Viterbi Detection An algorithm used in read channel technology that detects an entire sequence of data bits at a time and determines the most likely sequence of data bits by comparing actual sequence of data bit samples with sequences of possible data bit sample to accurately detect that data written to disk

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Data Recovery Glossary (Letter V)

Winchester Disk Former code name for an early IBM hard disk model, sometimes still used to refer to the technology and design of most traditional hard drives.

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Data Recovery Glossary (Letter W)

Ultra SCSI Provides 20 MB/s transfers over an 8-bit bus or 40 MB/s transfers over a 16-bit Wide SCSI bus. Also known as Fast-20 SCSI, this feature is most commonly found in SCSI-3 drives.

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Data Recovery Glossary (Letter U)

TPI (Tracks per inch) The number of tracks written within each inch of the disk’s surfaces, used to measure how closely the tracks are packed on a disk surface. Also known as track density. Tagged Queuing The ability of the drive to receive multiple I/O processes from each initiator

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Data Recovery Glossary (Letter T)

SCA-2 SCA-2 (Single Connector Attach) interface incorporates a grounding contact, blindmate connector, direct plug misalignment tolerance, ESD protection, hot swap capability, and backplane connector options for SCSI devices.

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Data Recovery Glossary (Letter S)

RLL (Run Length Limited) An encoding scheme used during write operations to facilitate data readback.

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Data Recovery Glossary (Letter R)

When a laptop hard drive becomes " unbootable ", and you are unable to repair it, you can often save the data on the hard drive by using a "slave drive" recovery method on a desktop computer.

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Hard Drive Data Recovery On a Desktop or Laptop Computer

PC Personal computer. PRML (Partial Response Maximum Likelihood) A read channel using sampled data, active equalization and Veterbi detection to accurately retrieve the user data off the disk

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Data Recovery Glossary (Letter P)