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                                              File Number S360-24
                                              Form C28-6570-0




Systems Reference Library




IBM System/360 Transition Aids
COBOL Language Differences

This publication sumroarizes the System/360
and   Current Systems specifications for
major IBM COBOL language elements requiring
evaluation, and possible conversion, during
the transition to IBM System/360 COBOL.
System/360 COBOL differences from Current
Systems COBOL are also summarized.    Where
pertinent, the distinction is made between
Level E and Level F CCBOL for System/360.
PREFACE


   This publication provides a convenient reference to the major
language differences between the IBM Current Systems COBOL languages and
the IBM System/360 COBOL language.
   The information presented in this publication was drawn from the
existing   IBM   COBOL Language manuals     (listed under "Prerequisite
Knowledge") that contain the specifications for all the Current Systems
compilers and the System/360 COBOL compiler. The material presented is
entirely dependent upon these publications and derives its authority
from them. In cases of conflict this publication does not supersede any
of the publications.


PREREQUISITE KNCWLEDGE

   The reader of this publication should have a basic knowledge of the
COBOL language, as well as a working knowledge of at least one IBM COBOL
compiler.
   System/360 COBOL is described in IEM                    System/360       Operating   Systems;
COBOL Language, Form C28-6516-2.
   The basic COBOL language implemented by the IBM Current Systems
compilers is described in Common Business Oriented Language    (COBOL);
General Information Form F28-8053.      In most instances, the specifi-
cations contained in the tables in this publication are in addition to
the specifications contained in the general information manual. There-
fore, a thorough familiarity with the general information manual is
essential to the effective use of this publication.
   Additional specifications for the individual Current Systems Compil-
ers are contained in the following publications:
   COBOL (on Tape) Specifications; IBM 1401, Form C24-1492-1.
   COBOL (on Disk)   Specifications; IBM 1401, 1440, and 1460, Form
   C24-3235-1.
   IBM 1410/7010 Operating System; COBOL L Form C28-0327-2.
   IBM 7040/7044 Operating Systems       (16/32K)   COBOL Language, Form
   C28-6336-2.
   IBM   7070-Series    Programming   Systems;    COBOL   Processor, Form
   J28-6182-2.
   IBM   7070-Series    COBOL/FORTRAN   Operating    System; COBOL, Form
   C28-6901-1.
   IBM 705/7080 Programming Systems; COBOL: Additional Specifications,
   Form J28-6177-3.
   IBM 7090/7094 IBSYS Operating System-Version 13; COBOL Language, Form
   C28-6391-0.   (Note: For the purposes of this publication, differences
   are based on Version 5 of the 7090/7094 COBOL compiler.)



This publication was prepared for production using an IBM computer to
update the text and to control the page and line format.         Page
impressions for photo-offset printing were obtained for an IBM 1403
Printer with a 120-character chain containing upper and lower case
letters, special characters, and numerals.

Copies of this     and other IBM publications can be obtained through IBM
Branch Offices.

A form for readers' corrments afpears at the back of this publication.
Address any additional comments concerning this publication to the IBM
Corporation, programming Systems publications, Dept. D39, 1271 Avenue
of the Americas, New York, N.Y., 10020.

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