Abbreviations and acronyms
- AIX®
- Advanced Interactive Executive
- ANSI
- American National Standards Institute
- API
- Application program interface
- APPC
- Advanced Program-to-Program Communications
- APPN
- Advanced Peer-to-Peer Networking
- ARP
- Address Resolution Protocol
- ASCII
- American National Standard Code for Information Interchange
- ASN.1
- Abstract Syntax Notation One
- AT-TLS
- Application Transparent Transport Layer Security
- AUI
- Attachment Unit Interface
- BIOS
- Basic Input/Output System
- BNC
- Bayonet Neill-Concelman
- CCITT
- Comite Consultatif International Telegraphique et Telephonique.
The International Telegraph and Telephone Consultative Committee
- CETI
- Continuously Executing Transfer Interface
- CLAW
- Common Link Access to Workstation
- CLIST
- Command List
- CMS
- Conversational Monitor System
- CP
- Control Program
- CPI
- Common Programming Interface
- CREN
- Corporation for Research and Education Networking
- CSD
- Corrective Service Diskette
- CTC
- Channel-to-Channel
- CU
- Control Unit
- CUA
- Common User Access
- DASD
- Direct Access Storage Device
- DBCS
- Double Byte Character Set
- DLL
- Dynamic Link Library
- DNS
- Domain Name System
- DOS
- Disk Operating System
- DPI
- Distributed Program Interface
- EBCDIC
- Extended Binary-Coded Decimal Interchange Code
- EISA
- Enhanced Industry Standard Adapter
- ELANS
- IBM® Ethernet LAN Subsystem
- ESCON
- Enterprise Systems Connection
- FAT
- File Allocation Table
- FDDI
- Fiber Distributed Data Interface
- FTAM
- File Transfer Access Management
- FTP
- File Transfer Protocol
- FTP API
- File Transfer Protocol Applications Programming Interface
- GCS
- Group Control System
- GDDM
- Graphical Data Display Manager
- GDF
- Graphics Data File
- HCH**
- HYPERchannel device**
- HIPPI
- High Performance Parallel Interface
- HPFS
- High Performance File System
- ICAT
- Installation Configuration Automation Tool
- ICMP
- Internet Control Message Protocol
- IEEE
- Institute of Electrical and Electronic Engineers
- IETF
- Internet Engineering Task Force
- ILANS
- IBM Token-Ring LAN Subsystem
- IP
- Internet Protocol
- IPL
- Initial Program Load
- ISA
- Industry Standard Adapter
- ISDN
- Integrated Services Digital Network
- ISO
- International Organization for Standardization
- IUCV
- Inter-User Communication Vehicle
- JES
- Job Entry Subsystem
- JIS
- Japanese Institute of Standards
- JCL
- Job Control Language
- LAN
- Local Area Network
- LAPS
- LAN Adapter Protocol Support
- LCS
- IBM LAN Channel Station
- LPD
- Line Printer Daemon
- LPQ
- Line Printer Query
- LPR
- Line Printer Client
- LPRM
- Line Printer Remove
- LPRMON
- Line Printer Monitor
- LU
- Logical Unit
- MAC
- Media Access Control
- Mbps
- Megabits per second
- MBps
- Megabytes per second
- MCA
- Micro Channel Adapter
- MHS
- Message Handling System
- MIB
- Management Information Base
- MIH
- Missing Interrupt Handler
- MILNET
- Military Network
- MTU
- Maximum Transmission Unit
- MVS™
- Multiple Virtual Storage
- MX
- Mail Exchange
- NCP
- Network Control Program
- NCS
- Network Computing System
- NDIS
- Network Driver Interface Specification
- NFS**
- Network File System**
- NIC
- Network Information Center
- NLS
- multicultural support
- NSFNET
- National Science Foundation Network
- OS/2
- Operating System/2®
- OSF**
- Open Software Foundation**, Inc.
- OSI
- Open Systems Interconnection
- OSIMF/6000
- Open Systems Interconnection Messaging and Filing/6000
- OV/MVS
- OfficeVision/MVS
- OV/VM
- OfficeVision/VM
- PAD
- Packet Assembly/Disassembly
- PC
- program call
- PCA
- Parallel Channel Adapter
- PDN
- Public Data Network
- PDU
- Protocol Data Units
- PING
- Packet Internet Groper
- PIOAM
- Parallel I/O Access Method
- POP
- Post Office Protocol
- PROFS™
- Professional Office Systems
- PSCA
- Personal System Channel Attach
- PSDN
- Packet Switching Data Network
- PU
- Physical Unit
- PVM
- Passthrough Virtual Machine
- RACF®
- Resource Access Control Facility
- RARP
- Reverse Address Resolution Protocol
- REXEC
- Remote Execution
- REXX
- Restructured Extended Executor Language
- RFC
- Request For Comments
- RIP
- Routing Information Protocol
- RISC
- Reduced Instruction Set Computer
- RPC
- Remote procedure call
- RSCS
- Remote Spooling Communications Subsystem
- SAA
- System Application Architecture
- SBCS
- Single Byte Character Set
- SDLC
- Synchronous Data Link Control
- SLIP
- Serial Line Internet Protocol
- SMI
- Structure for Management Information
- SMTP
- Simple Mail Transfer Protocol
- SNA
- Systems Network Architecture
- SNMP
- Simple Network Management Protocol
- SOA
- Start of Authority
- SPOOL
- Simultaneous Peripheral Operations Online
- SQL
- IBM Structured Query Language
- TCP
- Transmission Control Protocol
- TCP/IP
- Transmission Control Protocol/Internet Protocol
- TFTP
- Trivial File Transfer Protocol
- TSO
- Time Sharing Option
- TTL
- Time-to-Live
- UDP
- User Datagram Protocol
- VGA
- Video Graphic Array
- VM
- Virtual Machine
- VMCF
- Virtual machine communication facility
- VM/SP
- Virtual Machine/System Product
- VM/XA
- Virtual Machine/Extended Architecture
- VTAM®
- Virtual Telecommunications Access Method
- WAN
- Wide Area Network
- XDR
- eXternal Data Representation