Encyclopedia

Physical Sequential

(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.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

Mentioned in

data set organization
ps
QSAM
Queued Sequential Access Method

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