V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
QSAM Queued Sequential Access Method (SAM)The Free On-line Dictionary of Computing (30 December 2018):
Physical Sequential QSAM Queued Sequential Access Method(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)