IBM A24-3144-2 1401 operGuide free download

File name A24-3144-2_1401_operGuide.pdf

File No. 1401-01 Form A24-3144-2 Systems Reference Library IBM 1401l Data Processing System Operator's Guide This reference publication describes the operating features and procedures for each of the units of an IBM 1401 system. Several operations that utilize two or more units are also described. One section outlines recommended procedures for restarting after an error condition on the 1402 or 1403. For operator convenience, the logic of the 1401 system is discussed briefly. This includes addressing, phases of operation, internal checking, and coding structures. For a list of associated publications, see the IBM 1401 Bibliography, Form A24-1495. Maior Revision, March 1965 This publication, A24-3144-2, is a major revision of, and ob- soletes A24-3144-1 and Technical Newsletter N24-0248. Copies of this and other IBM publications can be obtained through IBM Branch Offices. Address comments concerning the content of this publication to 10M Product Publications, Endicott, New York 13764. Contents IBM 141()1 Data Processing System IBM 14Q5 Disk Storage ... 87 Oper1ator's Guide ... 5 Features ... "... 88 Features and Operations ... 5 IBM 1407 Console Inquiry Station 90 IBM 1401 Processing Unit "... 5 Features ... . 91 Features ... 7 Operations ... . 95 Operations ... ... ... ... 17 IBM 1447 Console Model 3 ... ;... 98 IBM 1402 Card Read-Punch ... 21