22 pages matching DDNAME in this book
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Introduction and Overview
The Whole Package
172 other sections not shown
access method allocation application program base management system basic binary bits bytes cataloged procedure central processing unit channel program chapter COBOL compiler computer system control unit core CP/M current PSW data base management data control block data set DD statement DDNAME direct access disk DOS/VS example EXEC statement executed functions gram hardware I/O device I/O operation IBM System/370 input and output input/output instruction interrupt handler job control language JOB statement job step job stream link edit linkage editor load module machine macro main memory memory management microcomputer multiprogramming needed object module operating system module output devices parameter printer priority problem processor program status word queue real memory registers relative record resident operating system routine segment simply source module source statement library space spooling storage stored subparameter supervisor tape terminal time-shared tion track typical virtual memory