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