DOCSLIB.ORG

Introduction to IBM 4300 and DOS/VSE Facilities Student Text

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Introduction to IBM 4300 and DOS/VSE Facilities Student Text --- - ----- ---------- Introduction to IBM 4300 --_.------- - - --- and DOS/VSE Facilities Student Text --- - ----- -------- Introduction to IBM 4300 ---------- - -_.­--- and DOS/VSE Facilities Student Text Minor Revision, May 1980 This is a minor revision of the previous edition with small corrections. All rights reserved. No portion of this text may be reproduced without express permission of the author. References in this publication to IBM proQucts, programs, or services do not imply that IBM intends to make these available outside the United States. Requests for copies of IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. Address comments concerning the contents of this publication to IBM Corporation, Publications Services, Education Center, South Road, Poughkeepsie, New York 12602 IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation whatever. You may, of course, continue to use the information you supply. @ Copyright International Business Machines Corporation 1980 Contents Course Introduction and Orientation 1 Audience . 1 Overview 1 Objectives . 2 Duration. 2 Outline . 3 Exercises 3 Unit 1: Introduction to Data Processing 1-1 Introduction . 1-1 Objective ..... 1-1 Audience ..... 1-1 Average Study Time . 1-1 Topic 1 - Data Processing Overview 1-2 The Data Processing System 1-2 Functional Units. 1-3 Central Processing Unit . 1-3 Storage ......... 1-4 Input and Output Devices 1-4 Exercise 1.1 . 1-7 Solution 1.1 . 1-9 Topic 2 - Data Representation I-tO Symbols, a Communication Tool I-tO Binary Concept . 1-11 Positional Notation . 1-13 Hexadecimal System ..... 1-16 Eight-bit Alphameric Code (Extended Binary Coded Decimal Interchange Code-EBCDIC) , 1-18 Exercise 1.2 . 1-21 Solution 1.2 ..... 1-22 Topic 3 - The Processor 1-23 TheALU .... 1-23 Registers ... 1-23 Control Section . 1-23 Machine Cycles 1-24 Exercise 1.3 . , 1-27 Solution 1.3 .... 1-28 Topic 4 - Main and Auxiliary Storage 1-29 Auxiliary Storage . 1-29 Main Storage 1-30 Exercise 1.4 . 1-33· Solution 1.4 . , . 1-34 Topic 5 - Input and Output Devices . 1-35 Control Units . 1-35 Channels ......... 1-35 Types of Channels . 1-36 Byte Multiplexer Channels 1-36 Selector Channels .... 1-36 Block Multiplexer Channels 1-37 Exercise 1.5.1 1-39 Solution 1.5.1 . 1-40 Contents Direct Access Storage Devices (DASD) ..... 1-41 Magnetic Tape Units . 1-42 Tape Records, Interblock Gap and Tapemark 1-42 Load-Point and End-of-Reel Markers 1-43 Card Readers 1-43 Card Punches . 1-44 Printers ....... 1-45 Wire Matrix Printer. 1-45 Chain Printer . 1-45 Typewriter . 1-46 3800 Printer . 1-46 Visual Display Unit 1-46 Console ... 1-47 Exercise 1.5.2 .. 1-49 Solution 1.5.2 .. 1-50 Input/Output Operations 1-51 Topic 6 - Stored Program Concepts and Compilers 1-52 Introduction . 1-52 Instructions . 1-52 Program ........ 1-53 Programming Languages 1-53 Source Program 1-53 Object Program 1-53 Linkage Editor 1-54 Languages 1-54 Exercise 1. 6 . 1-55 Solution 1.6 ... 1-56 Topic 7 - The Operating System. 1-57 Introduction . 1-57 Operating System . 1-57 Job Management. 1-57 Supervisor . 1-58 Program Library . 1-58 Data Management 1-58 Recovery Management . 1-59 Exercise 1.7 . 1 . 1-61 Solution 1.7.1 . 1-62 Multiprogramming 1-63 Spooling . 1-64 Summary .. 1-64 Exercise 1.7.2 1-65 Solution 1.7.2 1-66 Topic 8 - Data Communications. 1-67 Introduction . 1-67 Elements of a Data Communication Network . 1-68 Host Processor ......... 1-68 Communication Control Devices . 1-68 Modulation/Demodulation Devices 1-69 Communication Lines . 1-69 Configuration ..... 1-69 Transmission Direction . 1-69 Type ....... 1-69 Transmission Mode . 1-69 Codes ..... 1-70 Line Disciplines .. 1-70 ii Contents Terminals . .. ..... 1-70 Data Management Support . 1-70 Data Communication Applications 1-71 Exercise 1.8 ........... 1-73 Solution 1.8 . 1-74 Topic 9 - Virtual Storage Concepts 1-75 Introduction . 1-75 Why Virtual Storage? ...... 1-75 IBM Virtual Storage Implementation 1-76 Summary 1-80 Exercise 1.9 . 1-81 Solution 1.9 . 1-82 Unit 2: Hardware Overview · 2-1 Objectives . · 2-1 Study Time ...... · 2-1 Topic 1 4300 processor. Introduction to 4300 processors · 2-2 Operational modes of 4300 processors · 2-2 ECPS:VSE Mode ........ · 2-2 ECPS: VSE Storage Addressing · 2-2 System/370 Mode ....... · 2-3 System/370 Storage Addressing · 2-3 Error detection and maintenance · 2-3 Error detection . · 2-3 Maintenance . · 2-3 Remote Support Facility (RSF) · 2-3 Compatibility · 2-3 Exercise 2.1.1 · 2-5 Solution 2.1.1 · 2-6 4331 Overview · 2-7 Programming Support · 2-7 Processor Storage . · 2-7 I/O Device Attachment. · 2-8 DASD Adapter . · 2-8 8809 Magnetic Tape Unit Adapter . · 2-8 Communications Adapter · 2-8 5424 Adapter ..... · 2-8 Display/Printer Adapter · 2-8 Channels. · 2-8 Exercise 2.1.2 . · 2-9 Solution 2.1.2 2-10 4341 Overview 2-11 Programming Support 2-11 Processor Storage .. 2-11 1/0 Device Attachment . 2-12 Channels ... 2-12 Operator Console 2-12 Exercise 2.1.3 . 2-13 Solution 2.1.3 . 2-14 Topic 2. Input-Output Devices 2-15 Introduction . 2-15 Direct Access Storage Devices 2-17 3880 Storage Facility . 2-18 3830 Storage Control Unit. 2-18 3340 Disk Storage Facility . 2-19 3350 Direct Access Storage 2-20 Contents iii 3310 DASD ... 2-20 3370 DASD .. 2-21 Diskette Input/Output Device 2-22 Printing Devices . 2-24 3203 Printer Model 5 . .. 2-24 3262 Line Printer. 2-25 3211 Printer 3811 Printer Control Unit 2-25 3800 Printing SubSystem ... 2-26 Card Readers and Card Punches 2-26 3505 Card Reader 2-26 3525 Card Punch. 2-27 2540 Card Read Punch. .. 2-27 5424 Multi-function Card Unit. 2-28 Magnetic Tape Units .. 2-29 3400 Devices . 2-29 3410 Magnetic Tape Unit and 3411 Tape Unit and Tape Control 2-30 3420 Magnetic Tape Unit .. 2-31 3803 Tape Control. .... 2-31 The 8809 Magnetic Tape Unit 2-32 Terminals .. 2-33 IBM 3270 Overview. 2-33 3270 Display Units . 2-33 3270 Printers . 2-34 3270 Control Units. 2-34 IBM 3770 Overview. 2-34 3770 Fixed Function Terminals 2-35 3770 Programmable Terminals . 2-35 Exercise 2.2 . 2-36 Solution 2.2 . 2-38 Unit 3: Introduction to DOS/VSE · 3-1 Introduction . · 3-1 Objectives. .. · 3-1 Average Study Time . · 3-1 Topic - 1 DOS/VSE System Control Programs · 3-2 The IPL Program . · 3-2 The Supervisor ... · 3-3 The Job Control Program (JCP) · 3-4 Exercise 3.1 . · 3-9 Solution 3.1 ......... 3-10 Topic - 2 DOS/VSE Storage and Multiprogramming 3-11 Storage Organization . 3-11 Partitions and I/O Resources .. 3-11 Multiprogramming. .... .... 3-11 Processor Usage in Single-Partition Operation 3-12 Processor Usage in a Multiprogramming Environment 3-12 Processing Priorities 3-14 Multitasking .... 3-14 The Shared Virtual Area 3-15 Exercise 3.2. ... 3-17 Solution 3.2 . 3-18 Topic - 3 DOS/VSE Virtual Storage Implementation. 3-19 Page Data Set 3-19 Page In 3-20 Page Out 3-20 Page Pool 3-20 iv Contents Real Mode . 3-21 Exercise 3.3 3-23 Solution 3.3 3-23 Topic - 4 DOS/VSE Libraries and Processing Programs 3-25 Core Image Library . 3-26 Relocatable Library . 3-27 Source Statement Library 3-27 Procedure Library . 3-27 Library Structure . 3-27 Private Libraries. 3-28 Processing Programs 3-29 Application Programs 3-29 Service Programs . 3-29 Librarian programs . 3-29 Linkage Editor Program 3-29 System Utility Programs 3-29 Data Management Routines 3-29 Language Translators 3-30 Exercise 3.4 . 3-31 Solution 3.4 ...... 3-32 Topic - 5 VSE/POWER 3-33 Concepts and Functions . 3-33 Spooling ...... 3-33 Remote Job Entry . 3-36 Job Entry Control Language 3-36 Operator Commands 3-36 Exercise 3.5 . 3-37 Solution 3.5 ........ 3-38 Topic - 6 DOS/VSE Data Management. 3-39 Data Organization and Access Methods . 3-39 Data Organization . 3-39 Access Method . 3-39 Sequential Access Method (SAM) and Organization 3-40 File Organization. 3-40 Data Access .................. 3-40 Indexed Sequential Access Method (ISAM) and Organization 3-40 Index and File Organization . 3-40 Direct Access Method (DAM) and Organization . 3-41 VSE/Virtual Storage Access Method (VSE/VSAM) 3-41 File Organization . 3-41 VSAM Catalogs . 3-42 VSE/VSAM Space Management for SAM Feature 3-42 VSE/VSAM Device Independence. 3-42 ISAM Interface Program (lIP) 3-42 Data Security/Data Integrity . 3-42 VSE/VSAM Summary . 3-43 Telecommunication Access Methods 3-43 Protection of Data. 3-43 File labeling .......... 3-43 Protection Against Duplicate Assignments 3-44 File Security . 3-44 Track Hold Specification . 3-45 Exercise 3.6 . 3-47 Solution 3.6 ..... 3-48 Topic 7 Unit Summary 3-49 Ccmtents , Unit 4: ICCF Facilities . · 4-1 Introduction . · 4-1 Objective ..... · 4-1 Average Study Time . · 4-1 Topic - 1. Interactive Computing · 4-2 Program Development With Batch Facilities · 4-2 Interactive Program Development . · 4-3 VSE/ICCF · 4-5 Exercise 4.1 . · 4-7 Solution 4.1 . · 4-8 Topic - 2. Organization of ICCF · 4-9 ICCF Control Program . · 4-9 ICCF Command Processors . .4-9 Terminal Control Facility . .4-9 ICCF Interactive Partitions 4-10 Exercise 4.2 ....... 4-11 Solution 4.2 .
Load more

Recommended publications
  • IBM 3101 Display Terminal Description READER's COMMENT FORM GA18-2033-2
    GA 18-2033-2 File No. S370/4300/81 OO/S 1 - 09 Systems --------- - ---- - ------ ------- -- -----,- GAI8-2033-2 File No. S370/4300/8100/S1 - 09 IBM 3101 Display Terminal Systems Description -----_-..'-- - ---- --- -.~'--- ------- --------~-.- Federal Communications Commission (FCC) Statement For IBM 3101 Display Terminal Models 10, 12, and 13 Warning: This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instruction manual, may cause interference to radio cOmmunications. As temporarily permitted by regulation, it has not been tested for compliance with the limits for Class A computing devices pursuant to Subpart J of Part 1S of FCC Rules, which are designed to provide reasonable protection against such interference. Operation of this equipment in a residential area is likely· to cause interference, in which case, the user, at his own expense, will be required to take whatever measures may be required to correct the interference. For IBM 3101 Display Terminal Models 20, 22, and 23 Warning: This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 1 S of FCC Rules, which are designed to provide reasonable protection against such. interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference.
    [Show full text]
  • IBM 4341 Processor Model Group 1 Functional Characteristics and Processor Complex Configurator GA24-3672-4
    GA24-3672-4 File No. 4300-01 I BM 4341 Processor Model Group 1 Functional Characteristics and Processor Complex Systems Configurator .; t ' --- - ----- -----__,. ---~--- ---_- __,..- - -----.. - Federal Communications Commission (}~CC) Statement Warning: This equipment generates, uses, and can radiate radio-frequency energy and if not installed and used in accordance with the instructions manual, may cause inter(erence to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide a reasonable protection against such interfere nee when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference. In which case, the user at his own expense is required to take whatever measures may be necessary to correct the interference. ' The FCC statement above refers to machines manufactured or reconditioned after January 1, 1981. Fifth Edition, November 1981 This is a revision of GA24-3672-4. Significant changes are indicated by a line to the left of the change. Information contained in this manual is subject to change from time to time. Any such change will be reported in subsequent revisions or through the System Library Subscription Service. It is possible that this material may contain reference to, or information about, IBM products (machines and programs), programming, or services that are not announced ; in your country. Such references or information must not be construed to mean that IBM intends to announce such products, programming, or services in your country. Requests for copies of IBM publications should be made to your IBM representative or to the IBM branch office serving your locality.
    [Show full text]
  • 1C**************************************************************** Reproductions Supplied by EDRS Are the Best That Can Be Made from the Original Document
    DOCUMENT RESUME ED 311 966 JC 890 471 AUTHOR Austin, Henry TITLE Computer Specialist Need Assessment for Oakland Community College: Final Report. INSTITUTION Oakland Community Coll., Farmington, Mich. PUB DATE Oct 89 NOTE 112p. PUB TYPE Reports - Evaluative/Feasibility (142) -- Tests /Evaluation Instruments (160) EDRS PRICE MF01/PC05 Plus Postage. DESCRIPTORS Community Colleges; *Computer Science Education; *Curriculum Development; *Data Processing; Employer Attitudes; Followup Studies; Labor Force Development; Literature Reviews; Needs Assessment; *Occupational Information; Questionnaires; *Technological Advancement; Two Year Colleges ABSTRACT Prepared as part of an effort by Oakland Community College (OCC) to monitor the evolrtion of information technology ,1 relation to the college's mission and purpose, this report describes OCC's current programs in data processing, examines the fit between the current curriculum and the employment market for computer spec...lists in southeast Michigan, reviews the literature on technology trends, and presents recommendations. Following introductory material, the report describes OCC's four data processing programs: business computer programming, computer systems analysis, computer science technology, and srall computer systems technology. The next section examines employment and educational indicators, including gross projections of computer employment at the federal and regional ]-eels; content analyses of want-ads and of computer specialist offerings at other postsecondary i-stitutions; a review of model curriculum offerings from national computer service organizations; and results from surveys of former data processing students and area employers. Next, a summary is presented of major findings from a literature review of trends in computer technology. The final sections present recommendations for a new computer information science curriculum and for a computer system to support the new curriculum.
    [Show full text]
  • IBM's System/360-370 Architecture
    Case Study: IBM5 SYSTEM/360-370 ARCHITECTURE Why has the IBM System/360-370 to reduced-instruction-set computers, Padegs and architecture been so success- Case report that the common 360/370 instructions ful for so long? Case-study edi- execute in a single machine cycle. They also de- tors David Gifford and Alfred scribe their empirical observation that the architec- Spector sought to answer this ture has needed addressing at a rate of about one bit question by talking to Andris every 30 months, and comment on the implications Padegs and Richard Case, two of of this observation for the future of the architecture. the key people responsible for The editors observe that the careful standardiza- the 360/370 architecture, in tion process used by the architects is applicable out- Cases’s IBM office in Thornwood, side the realm of hardware. With ever greater in- New York, on August 8, 1986. vestments in user and system interfaces, standard- As the study shows, instruction-set design consti- ization and controlled evolution may be even more tuted only a small fraction of the effort behind the important for software. The example of the efforts of development of the 360/370 architecture. Padegs the 360/370 architects may benefit software imple- and Case describe the architecture and its specifica- mentors who want to build and maintain enduring tion, and recount its evolution. They emphasize that systems. the architecture’s success can be attributed to a sound initial design, but also to the precision of its definition, the care that has been taken to ensure that implementations meet architectural specifica- tions, and the procedures by which improvements have been managed.
    [Show full text]
  • Iita Cb"Unicatibns Cbncepts
    " IITA CB"UNICATIBNS CBNCEPTS " ----- ---- .!.:S::§"fi:--- GC21-5169-4 BATA COIIUN/CAT/ONS CONCEPTS ----- - --- -------_.------- --- GC21·5169·4 Fifth Edition (September 1983) This major revision makes obsolete GC21-5169-3. Many changes and additions were made to this manual. Some of the changes include deletion of some systems and addition of other systems. Changes or additions to the text and illustrations are indicated by a vertical line to the left of the change or addition. This publication contains examples of data and reports used in daily business operations. To illustrate them as completely as possible, the examples include the names of individuals, companies, brands, and products. All of these names are fictitious and any similarity to the names and addresses used by an actual business enterprise is entirely coincidental. References in this publication to IBM products, programs, or services do not imply that IBM intends to makes these available in all countries in which IBM operates. Any reference to an IBM licensed program in this publication is not intended to state or imply that only IBM's licensed program may be used. Any functionally equivalent program may be used instead. Publications are not stocked at the address given below. Requests for IBM publications should be made to your IBM representative or to the branch office serving your locality. This publication could contain technical inaccuracies or typographical errors. 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, Information Development, Department 245, Rochester, Minnesota, U.S.A.
    [Show full text]
  • GA33-3056-0 IBM 3270 Information Display Station
    GA33-3056-0 File No. S360/S370/S3/4300/81 00-09 Systems --- - ----- - ---- --------- • --------- - - _.---- GA33-3056-0 File No. 5360/5370/53/4300/8100-09 IBM 3270 Information Di splay System: Systems Color and Programmed Symbols IBM 3278 Display Station Models 2, 3, and 4 IBM 3279 Color Display Station Models 2A, 2B, 3A, and 3B IBM 3287 Printer Models 1,2, 1C, and 2C -------- --- - ---- --- -------_.---- - --- Preface This publication provides introductory information on color publications that the reader may find useful, or which are in the IBM 3270 Information Display System. It describes referred to in the text of this publication, are listed below. the IBM 3279 Color Display Station and the IBM 3287 • An Introduction to the IBM 3270 Information Display Printer Models 1C and 2C. The publication also provides System, GA27 ·2739. introductory information on the Programmed Symbols • IBM 3270 Information Display System: Component features that are available on these and some other 3270 Description, GA27·2749. system devices. • Introduction to Programming the IBM 3270, GC27·6999. The publication is intended primarily for customers' DP • Graphical Data Display Manager (GDDM) and Presentation managers and system analysts, and IBM marketing Graphics Feature (PGF): General Information, GC33·0 100. representatives and system engineers. The publication is Examples appear in this manual that include the names also intended for customers' operations personnel and IBM and addresses of individuals. All of these names and education personnel. addresses are fictitious and any similarity to the names and After the Introduction, the pUblication is divided into addresses used by actual individuals is entirely coincidental.
    [Show full text]
  • Oral History of Richard Case
    Oral History of Richard Case Interviewed by: Burton Grad Recorded: December 7, 2006 Westport, Connecticut CHM Reference number: X3777.2006 © 2006 Computer History Museum Table of Contents FAMILY HISTORY ...........................................................................................................................4 EDUCATION....................................................................................................................................7 EARLY COMPUTER EXPERIENCE..............................................................................................14 JOINING IBM .................................................................................................................................19 STARTING A FAMILY ...................................................................................................................20 INITIAL IBM EXPERIENCES.........................................................................................................23 THE 1410.......................................................................................................................................24 MOVING TO POUGHKEEPSIE .....................................................................................................30 THE 7040 AND 7044 .....................................................................................................................32 THE SYSTEM/360 .........................................................................................................................36 SYSTEM/370
    [Show full text]
  • IBM Mainframe Operating Systems: Timeline and Brief Explanation for the IBM System/360 and Beyond
    IBM Mainframe Operating Systems: Timeline and Brief Explanation For the IBM System/360 and Beyond Dave Morton Version 37.2 - December 2014 2 Contents Page (approximate) • 3 Short Introduction, IBM Motto and Logo • 4 Pictures • 7 Hercules Notes • 8 Brief History of the System/360 • 10 Summary of IBM Mainframe Operating Systems • 11 Emulators and Simulators for 14xx/70xx Computers • 12 Operating System Progressions • 13 Dates • 15 Program Products Statement (licensed products) • 15 DOS/360 History • 16 DOS, TOS, BOS, BPS • 18 OS – PCP, MFT, VS1 • 20 OS – MVT, VS2, SVS, MVS, Z/OS • 25 VM - Virtual Machine • 26 TSS - Time Sharing System • 26 ACP and TPF – High Volume Transaction Processing • 27 Miscellaneous Operating Systems: OS/44 and PS/44. IX/370 and AIX (IBM's version of Unix). • 28 Non-IBM Operating Systems Running on IBM or Other Mainframes: MUSIC, MTS, Unix, Telpar, ORVYL, VP/CSS, UTS, PICK/370 • 30 Some Components and Features • 41 Mainframe/PC Comparisons (for PC People NEW to Mainframes) • 68 Additional Links • 69 Acknowledgements and Credits • 69 Where to send comments Updates: 37.1 - NovemBer 2013. Additional credits and links added for Hercules contriButors and others. 37.2 - DecemBer 2014. A stronger note written regarding Hercules, that it is not for NewBies. It never was!! NewBies install Hercules, it doesn't work, then join the Hercules groups and ask thousands of questions of the memBers. "What is a mainframe?? What is JCL?? What does ABEND mean?? What is a PROC?? Why is there air?? Where am I??" Do they walk upside down in Australia?? Do Penguins fly??".
    [Show full text]
  • Programming Guide
    Assembler H Version 2 SC26-4036-2 Programming Guide Re ease 1 IBM Assembler HVersion 2 sc26^036-2 Programming Guide Release 1 I Third Edition (December 1987) I This is a major revision of, and makes obsolete, SC26-4036-1. This edition applies to Release 1 of Assembler H Version 2, Licensed Program 5668-962, and to any subsequent releases until otherwise indicated in new editions or technical newsletters. The changes for this edition are summarized under "Summary of Changes" following the preface. Specific changes are indicated by a vertical bar to the left of the change. These bars will be deleted at any subsequent republication of the page affected. Editorial changes that have no technical signif icance are not noted. Changes are made periodically to this publication; before using this publication in connection with the operation of IBM systems, consult the latest IBM System/370. 30xx, and 4300 Processors Bibliography, GC20-0001, for the editions that are applicable and current. References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM licensed program in this publication is not intended to state or imply that only IBM's program may be used. Any functionally equivalent program may be used instead. Requests for IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. If you request publications from the address given below, your order will be delayed because publications are not stocked there.
    [Show full text]
  • 4381 Processor Model Groups 1 & 2 Functional Characteristics
    -------- ----- = ~--= .:...::=~== 4381 Processor Model Groups 1 &2 Functional Characteristics Publication Number: GA24-3947-1 File Number: 4300-01 Federal Communications Commission (FCC) Statement Warning: This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instructions manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference. Second Edition (March 1984) This major revision obsoletes GA24-3947-0; text changes are identified by a vertical line to the left of the change. Information contained in this manual is subject to change from time to time. Any such change will be reported in subsequent revisions or through the System Library Subscription Service (SLSS). It is possible that this material may contain reference to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information should not be interpreted to mean that mM plans to announce such products, programming, or services in your country. Requests for copies of mM publications should be made to your IBM representative or to the mM branch office serving your locality. A form for reader's comments is supplied at the back of the publication.
    [Show full text]
  • IBM Z/VSE Basics
    Front cover Introduction to the New Mainframe: IBM z/VSE Basics Mike Ebbers Wolfgang Bosch Hans Joachim Ebert Helmut Hellner Jerry Johnston Marco Kroll Wilhelm Mild Wayne O’Brien Bill Ogden Ingolf Salm Joerg Schmidbauer Martin Walbruehl Redbooks International Technical Support Organization Introduction to the New Mainframe: IBM z/VSE Basics March 2016 SG24-7436-01 Note: Before using this information and the product it supports, read the information in “Notices” on page xiii. Second Edition (March 2016) This edition applies to Version 6 Release 1 of IBM z/VSE, Program Number 5686-VS6, and to all subsequent releases and modifications. © Copyright International Business Machines Corporation 2007, 2016. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . xiii Trademarks . xiv IBM Redbooks promotions . .xv Preface . xvii How this text is organized . xviii How each chapter is organized . xviii About the authors. xix Acknowledgements . .xx Comments welcome. xxi Summary of changes. xxiii February 2016, Second Edition . xxiii Part 1. Introduction to IBM z/VSE and the mainframe environment . 1 Chapter 1. Introduction to the new mainframe. 3 1.1 The new mainframe . 4 1.2 The IBM S/360: A turning point in mainframe history . 4 1.3 An evolving architecture . 5 1.4 Mainframes in our midst . 6 1.5 What is a mainframe? . 7 1.6 Who uses mainframe computers? . 9 1.7 Factors contributing to mainframe use . 10 1.7.1 Reliability, availability, and serviceability. 11 1.7.2 Security . 12 1.7.3 Scalability .
    [Show full text]