RLL encoding

RLL encoding
   An efficient method of storing information on a hard disk. Compared with older, less-efficient methods, such as modified frequency modulation encoding (MFM), RLL encoding effectively doubles the storage capacity of a disk.

Dictionary of networking . 2014.

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  • RLL — may stand for:*Run Length Limited, an encoding scheme for disk drives *Relay Ladder Logic, a programming language for industrial control …   Wikipedia

  • RLL — abbr. Run Length Limited (encoding) comp. abbr. Run Length Limited acronym Run Length Limited …   United dictionary of abbreviations and acronyms

  • data-encoding scheme —    The method used by a hard disk controller to store information onto a hard disk or a floppy disk.    Common encoding schemes include the run length limited (RLL) and advanced runlength limited (ARLL) methods.    See also advanced run length… …   Dictionary of networking

  • advanced run-length limited encoding —    Abbreviated ARLL. A technique used to store information on a hard disk that increases the capacity of runlength limited (RLL) storage by more than 25 percent and increases the data transfer rate to 9Mbps.    See also RLL encoding …   Dictionary of networking

  • Run length limited — or RLL coding is a technique that is used to store data on recordable media. Specifically, RLL prevents long stretches of repeated bits from causing the signal recorded on media to not change for an excessive period, by modulating the data. RLL… …   Wikipedia

  • Group code recording — In computer science, group code recording (GCR) refers to several distinct but related encoding methods for magnetic media. The first, used in 6250 cpi magnetic tape, is an error correcting code combined with a run length limited encoding scheme …   Wikipedia

  • Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …   Wikipedia

  • SyQuest Technology — SyQuest Technology, Inc., now known as SYQT, Inc., was an early entrant into the removable hard disk market for personal computers. The company was started in 1982 by Syed Iftikar; it was named partially after himself because of a company meeting …   Wikipedia

  • Quarter-inch cartridge — tape (abbreviated QIC, commonly pronounced quick ) is a magnetic tape data storage format introduced by 3M in 1972, with derivatives still in use as of 2009. QIC comes in a rugged enclosed package of aluminum and plastic that holds two tape reels …   Wikipedia

  • Modified Frequency Modulation — This article is about Modified Frequency Modulation. For other uses of MFM, see the MFM (disambiguation). Modified Frequency Modulation, commonly MFM, is a line coding scheme used to encode the actual data bits on most floppy disk formats,… …   Wikipedia

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