TY - BOOK AU - TI - VM/370 operations: operating DOS/VSE under VM/370 I0043 study guide PY - 1978/// CY - White Plains, N.Y. PB - International Business Machines Corporations KW - Virtual computer systems KW - Electronic digital computers KW - Programming N1 - 'Operator training library'; 'Independent study program'; 'SR20-7220-1' ER -