IBM C24-1462-3 1401 tapeIOCS free download

File name C24-1462-3_1401_tapeIOCS.pdf

File Number 1401/1460-30 Form C24-1462-3 Systems Reference Library Input/Output Control System (on Tape) Specifications and Operating Procedures IBM 1401 and 1460 Program NI:.Jmber 1401 - 10 - 065 This publication describes the programming required to use lacs to control the input/output of data from card reader, card punch, printer, and tape files. The lacs descriptive entries (DlaCS and DTF) and macro instructions are explained in detail. The types of data records and tape labels handled by lacs "are defined. Also, two sections are included that should be espe- cially useful to experienced programmers: (1) Sum- maries - briefly lists storage-area considerations, macro instructions, and processing-overlap considerations; (2) Program Operation - describes lacs library routines, labels, halts, and error indications. lacs is a supplement to the 1401 Autocoder program, and the reader should be familiar with the program described in Autocoder (on Tape) Specifications for IBM 1401 and 1460, Form C24-1434. Fourth Edition This is a reprint of C24-1462-2 incorporating changes released in the following Tech- nical Newsletter: Form Number Pages Affected N24-0286 7, 8, 9, 10, 11, 12, 12.1, December 23, 1964 25, 26, 28, 29, 33, and 34 Significant changes or additions to the specifications contained in this publication will be reported in subsequent revisions or Technical Newsletters. Requests for copies of IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. Address comments concerning this manual to: IBM Corporation, Programming Publica- tions, Dept. 425, Rochester, Minn. 55901.