<file format> (PS, QSAM, Queued Sequential Access Method) The simplest data set on an IBM mainframe. Sequential files can only be read or written from the beginning: they do not support random access.
[Why "Queued"?]
(2003-12-05)
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Nearby terms: physical layer « physical memory « physical memory address « Physical Sequential » Physical Transport Network » Physics Analysis Workbench » PI