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VSAM

VSAM Acronym for virtual storage access method. An access method for data files, supporting both sequential access and indexed access (see indexed file), and based on primary indexes that are structured as B+ trees (see B-tree). It is specific to IBM machines and operating systems using virtual memory techniques, and improves on ISAM.

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"VSAM." A Dictionary of Computing. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"VSAM." A Dictionary of Computing. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/vsam

"VSAM." A Dictionary of Computing. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/vsam

VSAM

VSAM Computing virtual storage access method

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"VSAM." The Oxford Dictionary of Abbreviations. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"VSAM." The Oxford Dictionary of Abbreviations. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/vsam

"VSAM." The Oxford Dictionary of Abbreviations. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/vsam