IBM 7074 General Information Manual page 3

Preface
This manual is intended to provide general introduc-
tory information on the use of the
IBM
1301 Disk
Storage with
IBM
7000 series Data Processing Systems.
Since the 7000 systems include both the fixed word
length systems (7070,7074,7090) and a variable word
length system (7080), minor variations occur in the
addressing schemes, track capacity, core storage lay-
out, and data transmission. This manual does not at-
tempt to give specific details for these areas; the varia-
tions are described in a separate
IBM
1301 Disk Storage
bulletin for each system. Information common to 7000
systems in the operation of the 1301 Disk Storage and
the 7631 File Control has been included in the Opera-
tions section of this manual. It is assumed that the
reader has a practical working knowledge of one of
the major
IBM
data processing systems.
MAJOR
REVISION
(October, 1962)
This edition, Form D22-6576-3, obsoletes Form D22-6576-2,
and
IBM
Technical Newsletters, Forms N22-0029, N22-0031,
N22-0035, N22-0039, and N22-0061.
Address comments concerning this manual to:
IBM Corporation
Customer Manuals, Dept. 298
P.O. Box 390
Poughkeepsie, N.Y.
©
1961, 1962 by International Business Machines Corporation