Text preview for : A24-1496-1_1460_sysSummary.pdf part of IBM A24-1496-1 1460 sysSummary IBM 146x A24-1496-1_1460_sysSummary.pdf
Back to : A24-1496-1_1460_sysSummar | Home
File :\'umber 1460-00
Form A24-1496-1
Systems Reference Library
IBM 1460 Systems Summary
This publication contains brief descrip-
tions of the machine features, compo-
nents, configurations, and special fea-
tures. Also included is a section on
programming systems, and the program-
ming publications that can be used for
the 1460 system.
Publications providing detailed in-
formation on subjects discussed in this
summary are listed in the IBM 1401/1460
Bibliography, Form A24-1495.
This edition, A24-1496-1, is a major reVISIOn, and obsoletes
A24-1496-0. This edition and Special Features for 1401/1460,
A24-3071-0, obsolete Technical Newsletter N24-0089.
Copies of this and other IBM publications can be obtained through IBM Branch Offices.
Address comments concerning the content of this publication to IBM Product Publications, Endicott, New York 13764.
Contents
IBM 1460 Systems Summary 5 Magnetic-Tape-Oriented System 21
System Concepts . 5 Magnetic Tape Units 21
Tape Instructions 23
The Stored Program 5
Magnetic-Core Storage 6 Disk-Storage-Oriented System . 24
Magnetic-Tape Storage 7 IBM 1311 Disk Storage Drive 24
Magnetic-Disk Storage 8 Disk Instructions ..... 25
Language 8 IBM 1301 Disk Storage, Models 11, 12, 21, and 22. 26
Processing 8
Checking 8 Special Features 28
Solid-State Circuitry 8 IBM 1441 Processing Unit, Model B ... 28
Advanced Design 9 IBM 1461 Input/Output Control, Models 1, 2, 3 29
IBM 1460 Used with Other Systems 9 IBM 1447 Console, :\;lodels 1, 2, or 4 31
IBM Scientific Data Processing Systems 9 IBM 1402 Card Read-Punch, Model 3 31
IBM 1403 Printer .. 32
Card-Oriented System 10
IBM 1311 Disk Storage Drive 32
Physical Features 10
System Data Flow 10 Other Input/Output Units for the IBM
IBM 1441 Processing Unit 11 1460 System 33
IBM 1461 Input/Output Control, Models IB~l 1009 Data Transmission Unit 33
1,2, and 3 12 IB~1 1011 Paper Tape Reader 33
IB~l 1447 Console, Modell 12 IB~l 1012 Tape Punch ........ 33
IBM 1447, :\;lodel 2, Inquiry Unit 13 IBM 1412 and 1419 Magnetic Character Readers 34
IBM 1447, Model 4, Inquiry Unit with Controls IBM 1418 Optical Character Reader 34
for a 1448 14 IBM 1428 Alphameric Optical Reader 35
IBM 1402 Card Read-Punch, YIodel 3 14 IBM 1448 Transmission Control Unit . 35
IBM 1403 Printer 15
Checking 16 IBM 1460 Programs and Programming Systems . .. 36
Word Mark 16 Symbolic Programs ........... . . . . . . . . .. 36
Stored -Program Instructions 16 Card System Programs 39
Operation Codes 19 Disk Utility Programs (IBM 1311) 40
Editing 19 Tape System Utility Programs 41
Figure 1. IBM 1460 Data Processing System
IBM 1460 Systems Summary
The IBM 1460 Data Processing System (Figure 1) IBM 1401 systems and 1460 systems have the same
utilizes the widely accepted 1401 instruction logic, an basic instruction set. 1401 programs can be run on
improved processing speed, and the latest advances 1460 systems, and 1460 programs can be run on 1401
in solid-state electronics to provide a new, powerful, systems if the features and I/O units required by the
1401-compatible, data processing system. programs are present on the system. Compatibility
Specifically designed as a 1401 growth system, the may be lost in those cases where execution of a pro-
1460 uses the same instructions as the 1401. Customers gram depends on internal cycle speed or the relation-
that have the 1401 can benefit immediately from the ship between internal speed and input/output speed.
1460's improved performance without incurring the For example, programs employing timing loops (such
traditional costs of retraining, reprogramming, and as in IBM 1419 operations) and programs optimized to
operating two systems during conversion. read-release and punch-release timing restrictions must
The compatible design is of additional benefit to be re-evaluated to determine possible limitations.
1460 users because it permits use of released IBM 1401
programming systems on the 1460. Such valuable
programming systems programs as Autocoder, Fortran,
and Cobol may be used immediately to produce 1460 System Concepts
object programs.
Featuring a 6-microsecond processing cycle, the The IBM 1460 can be considered in three major con-
1460: Rgurations: the card, tape, and disk-storage-oriented