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IBM System/360 08(T80)
ITF: BASIC
Program Product Terminal User's Guide
Program Numbers: 5734-RC2
5734-RC4
This publication provides tutorial information and
reference material for users of the BASI C language
component of the Interactive Terminal Facility (lTF), a
Program Product that operates under the Time Sharing
Option (TSO) of the System/360 Operating System (OS).
The book tells how to use ITF in the TSO environment,
and how to write programs in BASIC; it also includes
detailed descriptions of the BASI C language elements, a
subset of the TSO command language, as well as error
recognition and correction. Sample programs and
examples of the use of ITF: BASI C appear throughout the
text.
This publication is intended for the TSO ITF:BASIC
terminal user. No previous knowledge of programming or
of the BASIC language is required.
This publication is being released prior to the availability of TSO ITF to permit installation
planning.
FIRST EDITION (April, 1971)
. This edition corresponds to Release 1 of TSO ITF.
Changes are continually made to the information herein; before using this publication in connection
with the operation of IBM systems, consult the latest IBM System/360 SRL Newsletter, Order
No. GN20-0360, for the editions that are applicable and current.
Requests for copies of IBM publications should be made to your IBM representative or to the
IBM branch office serving your locality.
A form for readers' comments is provided at the back of this publication. If the form has been
removed, comments may be addressed to IBM Corporation, Programming Publications, 1271
Avenue of the Americas, New York, New York 10020. Comments become the property of IBM.
@ Copyright International Business Machines Corporation, 1971
Preface
This publication is both an introduction and a reference guide for users of the IBM
System/360 Operating System, Time Sharing Option, Interactive Terminal Facil-
itY:BAsIc language. There are no prerequisite publications.
IBM'S ITF:BASIC is a terminal-oriented programming language which was devel-
oped for people who wish to solve problems of a mathematical nature but who
do not wish or do not need to become experts in the field of modem computer
programming.
The purpose of this publication is threefold: first, to lead the user with little
or no programming experience simply and easily to the point where he can write
elementary programs in ITF:BASIC; second, to provide him with enough information
to allow him to write more and more advanced programs in ITF: BASIC; and third,
to acquaint him with the TSO environment so that he can fulfill either or both of
the first two purposes by actually using the terminal from the beginning. To aid
the user of this publication, the material has been divided into three parts.