IRCCN - Input - space RCCN

IRD - Internet Resource Directory

IRD - Integrated Receiver / Descrambler

IRDA - Infrared Data Association

IRDS - Information Resource Dictionary System

IRET - Interrupt Return

IRF - Intermediate Routing Function

IRF - Inheritance Rights Filter

IRG - Inter - Record GAP

IRGB - Intensity Red Green Blue

IRIS - Image Recognition Integrated Systems

IRL - Inter - Repeater Link

IRL - Interactive Reader Language

IRLAP - Infrared Link Access Protocol

IRM - Information Resource Management

IRQ - Interrupt Request

IRS - Interface Requirements Specification

IRT - Inverse Radon Transform

IRTF - Internet Research Task Force

IRX - Information Retrieval Experiment

IS - Interrupt Status

IS - Information System

IS - Intermediate System

IS - Information Strategy

IS-IS - Intermediate System - to - Intermediate System