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IBM Technology Abbreviations
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| ACDS
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Active Control Data Set
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| ACF
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Advanced Communications Function (part of SNA that provides distributed processing and resource sharing)
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| AFC
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AntiFerromagnetically-Coupled (storage media technology)
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| AFP
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Advanced Function Presentation (was known as Advanced Function Printing)
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| AIX
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Advanced Interactive eXecutive (IBM's version of Unix)
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| APPC
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Advanced Program-to-Program Communication
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| APPN
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Advanced Peer-to-Peer Networking (part of IBM's SNA)
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| BDAM
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Basic Direct Access Method (IBM OS/360)
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| BPAM
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Basic Partitioned Access Method
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| BSAM
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Basic Sequential Access Method (IBM OS/360)
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| BSDS
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Bootstrap Data Set
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| BTAM
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Basic Telecommunications Access Method
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| BISYNC
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Binary SYNchronous Communications
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| BIU
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Basic Information Unit
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| CHPID
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Channel Path Identifier (z/OS)
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| CICS
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Customer Information Control System (transaction processing)
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| CKD
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Count Key Data (IBM System/360)
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| CSL
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Callable Services Library
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| CSL
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Common Service Layer
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| CUA
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Common User Access
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| DAT
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Dynamic Address Translation (z/OS)
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| DCB
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Data Control Block
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| DCF
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Data Communication Facility
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| DCL
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Destination Control Table (z/OS)
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| DDCS
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Distributed Database Connection Services (replaced by DB2 Connect&tm;)
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| DDX
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Digital Data Exchange
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| DFDSS
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Data facility Data Set Services
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| DFSMS
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Data facility Storage Management Subsystem (z/OS)
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| DFT
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Distributed Function Terminal
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| DRDA
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Distributed Relational Database Architecture
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| EBCDIC
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Entended BCDIC
(8-bit character encoding used in IBM mainframe OS)
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| EHLLAPI
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Emulator High-level Language API (IBM-3270)
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| EISA
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Extended ISA (pc bus)
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| EOV
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End of Volume
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| ERN
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Explicit Route Number (z/OS)
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| ESCON
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Enterprise Systems CONnection (serial interface for IBM - SAN system; newer protocol - FICON)
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| ETVX
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Entry, Task, Validation, eXit (programming process architecture project)
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| FICON
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Fibre I/O CONnection (IBM - SAN system; older protocol - ESCON)
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| GRS
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Global Resource Serialization (z/OS)
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| GPFS
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General Parallel File System
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| HATS
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Host Access Transformation Services (WebSphere)
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| IAK
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Internet Access Kit
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| IAR
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Instruction Address Register (program counter/ register in a
CPU)
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| IDC
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IBM Data Connector
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| IMS
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Information Management System (hierarchical database)
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| ITB
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Intermediate Text Block
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| JCL
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Job Control Language
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| JCT
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Job Control Table
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| JECL
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Job Entry Control Language
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| JES
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Job Entry System (also Subsystem)
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| JFS
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Journaled File System
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| KAIO
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Kernelized Asynchronous
I/O (DB2/UDB)
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| LBAC
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Label Based Access Control (DB2)
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| LSF
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Load Sharing Facility (or Platform LSF for job scheduling/workload management)
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| LUB
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Logical Unit Block (table)
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| MCA
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Micro Channel Architecture (PC-bus)
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| MPTN
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Multi-Protocol Transport Network (Internet)
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| MPTS
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Multi-Protocol Transport Services
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| MVS
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Multiple Virtual Storage
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| NASSL
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Network Accessible Service Specification Language - replaced by
WSDL for
UDDI registry
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| NBBS
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Networking BroadBand Services
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| NBS
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Numeric Backspace
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| NCCF
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Network Communications Control Facility (software in VTAM)
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| NetSP
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Network Security Program
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| NJE
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Network Job Entry
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| NLT
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Nucleus Load Table (CICS)
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| NTS/2
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Network Transport Services/2
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| OLTEP
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OnLine Test Executive Program
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| PLT
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Program List Table (z/OS)
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| PDF
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Printer Definition File
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| PDS
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Partitioned Data Set (PDSE - PDS Extended)
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| PDT
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Printer Definition Table
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| PER
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Program Event Recording (z/VM)
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| PFK
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Program Function Keys (z/OS)
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| PIU
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Path Information Unit (SNA)
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| PSB
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Program Specification Block (IMS and mainframe computers)
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| QSAM
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Queued Sequential Access Method (IBM OS/360)
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| QTAM
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Queued Telecommunications Access Method (IBM System/360)
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| RACF
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Resource Access Control Facility
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| REXX
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Restructured Extended Executor
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| RJE
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Remote Job Entry (used in CICS/VSE IBM mainframe environment)
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| RLD
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Relocation Dictionary (z/OS)
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| RPG
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Report Program Generator (programming language - IBM AS/400)
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| RPS
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Rotational Position Sensing (z/OS)
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| RRDS
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Relative-Record Data Set (z/OS)
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| RUP
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Rational Unified Process (configurable software development process platform)
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| SAM
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Sequential Access Method
(z/VSE Operating System)
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| SDLC
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Synchronous Data Link Control (bit oriented protocol, part of
SNA)
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| SLVM
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Shared LVM
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| SLT
| Refer - SLT
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| SMART
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Self Managing And Resource Tuning (DB2)
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| SNA
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Systems Network Architecture
(an IBM protocol)
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| SNADS
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Systems Network Architecture Distribution Services
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| SOBA
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Services Oriented Business Applications
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| SOMA
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Services Oriented Modeling and Achitecture
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| SRB
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Source Route Bridging (token ring network)
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| SWT
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Standard Widget Toolkit (IBM's alternative to AWT)
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| TCF
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Transparent Computing Facility (AIX)
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| TNN
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Transport Network Node
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| TPF
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Transactions Processing Facility
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| TVFS
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Toronto Virtual File System
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| TWA
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Transaction Work Area (z/OS)
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| UCB
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Unit Control Block
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| UCW
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Unit Control Word
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| UMA
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Unified Method Architecture
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| VRN
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Virtual Route Node (SNA)
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| VRN
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Virtual Route Number (SNA)
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| VSAM
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Virtual Storage Access Method (IBM OS/360)
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| VSD
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Virtual Shared Disk
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| VSE
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Virtual Storage Extended
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| VTAM
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Virtual Telecommunications Access Method (OS/360)
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| VVDS
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VSAM Volume Data Set
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| WBI
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WebSphere Broker Integration
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| XAPI
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API for XML database
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| XDI
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Xtended Design Architecture
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| XID
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eXchange ID (identifier exchanged between nodes in a IBM SNA based network/protocol)
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| XLT
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Transaction List Table (z/OS)
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| AS/400
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Application System/400
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| IMS/VS
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Information Management System/virtual Storage
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| OS/2
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Operating System/2
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| PL/I
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Programming Language One (also PL/1)
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| RS/6000
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RISC System 6000
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| MVS/ESA
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Multiple Virtual Storage/Extended System Architecture
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| MVS/XA
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Multiple Virtual Storage/Extended Architecture
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| NCP/VS
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Network Control Program/Virtual Storage
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| SQL/DS
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SQL/Data System
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| TSO/E
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Time Sharing Options/Extensions
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