I

I-Net       Intranet

I/O         Input/Output

I/O         Input/Output

IA5         International Alphabet Five

IAB         Internet Activities Board

IC          Integrated Circuit

ICEM        Integrated Computer Engineering and Manufacturing

ICMP        Internet Control Message Protocol

ID          Identifier

IDA         Indirect Data Addressing

IDA         Intelligent Drive Array

IDE         Integrated Drive Electronics

IDEA        International Data Encryption Algorithm

IDL         Interfacce Definition Language

IDT         Interrupt Descriptor Table

IEC         InterExchange Carrier

IEEE        Institute of Electrical and Electronic Engineers

IETF        Internet Engineering Task Force

IF          Interrupt Flag

IFF         Interchange File Format

IFIP        International Federation of Information Processing

IFS         Interchange File Separator

IFS         InterFrame Space

IGES        Initial Graphics Exchange Specification

IGMP        Internet Group Membership Protocol

IGS         Interchange Group Separator

II          Interactive Interface

IISP        Interim Interswitch Signaling Protocol

IKT         Informatione- und Kommunikationstechnik

ILC         InterLanguage Communication

IML         Initial Microcode Load

IMPL        Initial Microprogram Load

IMR         Interrupt Mask Registers

IMS         Information Management System

IMS/VS      Information Management System / Virtual Storage

INP         Inhibit Presentation

INT         INTerrupt

IOC         ISDN Ordering Code

IOCP        Input/Output Configuration Program

IOCS        Input/Output Control System

IOGEN       Input/Output device GENeration

IOPL        Input/Output Privilege Level

IOS         Input/Output Supervisor

IP          Internet Protocol

IPL         Initial Program Load

IPM         InterPersonal Message

IPSE        Integrated Project Support Environment

IPX         Internet Packet Exchange

IR          Index Return

IRC         Internet Relay Chat

IRDS        Information Resource Dictionary System

IRQ         Interrupt ReQuest

IRS         Interchange Recors Separator

IS          Information System

IS          Intermediate System

IS          International Standard

ISA         Industry Standard Architecture

ISAM        Indexed Sequential Access Method

ISDN        Integrated Services Digital Network

ISFMS       Indexed Sequential File Management System

ISMF        Interactive Storage Management Facility

ISO         International Standardization Organisation

ISO IEC     ISO International Electrotechnical Commitee

ISODE       ISO Development Environment

ISP         Internet Service Provider

ISPF        Interactive System Produvtivity Facility

ISPF/PDF    ISPF Program Development Facility

ISR         Information Storage and Retrieval

ISR         Intermediate Session Routing

ISSE        Intel SIMD Sreaming Extension

ISV         Independent Software Vendor

IT          Indent Tab

ITB         Intermediate Transmission Block

ITLD        International Top-Level Domain

ITRC        Information Technology Requirements Council

ITU         International Comunication Union (ehem. CCITT)

ITV         Interactive TeleVision

IUS         Interchange Unit Separator

IWS         Intelligent WorkStation