R&D - Research and Development
RA - Registration Authority
RAB - Radio Access Bearer
RAB - RAID Advisory Board
RAC - Rambus® ASIC Cell
RAC - Rapid Application Center
RAC - Real Application Cluster
RACE - Research on Advanced Communications in Europe
RACF - Resource Access Control Facility
RAD - Rapid Application Development
RADIUS - Remote Authentication Dial-In User Service
RADSL - Rate-Adaptive Digital Subscriber Line
RAI - Remote Alarm Indication
RAID - Redunant Array of Independent Disks
RAID - Redundant Array of Inexpensive Disks
RAIL - RAID on Library
RAIL - Remote Assisted Instructional Learning
RAIT - RAID on Tape
RAM - Random Access Memory
RAMDAC - Random Access Memory Digital-to-Analog Converter
RAMP - Reliable Adaptive Multicast Protocol
RAN - Radio Access Network
RAN - Regional Area Network
RANAP - Radio Access Network Application Part
RAPI - Remote Application Programming Interface
RAR - Resource Adapter aRchive
RARE - Reseaux Associes pour la Recherche Europeenne
RARP - Reverse Address Resolution Protocol
RAS - Registration, Admission and Status
RAS - Reliability, Availability, and Serviceability
RAS - Remote Access Service
RAS - Row Address Strobe
RASM - Reliability, Availability, Serviceability and Management
RASS - Reliability, Availability, Serviceability, and Security
RAT - Radio Access Technology
RAT - Remote Administration Tool
RAUG - Racine Area Users Group
RAV - Reliable AntiVirus
RAWT - Remote Abstract Windowing Toolkit
RBAC - Role-Based Access Control
RBC - Reduced Block Command
RBE - Routed Bridged Encapsulation
RBHC - Regional Bell Holding Company
RBL - Real-time Black List
RBOC - Regional Bell Operating Company
RBS - Radio Base Station
RBS - Robbed-Bit Signaling
RC - Release Candidate
RC - Rounding Control
RCA - Radio Corporation of America
RCC - Remote Control Card
RCC - Rendering Custom Components
RCDS - Resource Cataloging and Distribution Service
RCFoC - Rapidly Changing Face of Computing
RCM - Reference-Counting Memory
RCP - Remote Copy Protocol
RCR - Read Configuration Register
RCS - Reference Color Space
RCS - Revision Control System
RCU - Read-Copy Update
RCU - Resource Configuration Utility
RD - Receive Data
RD - Remote Desktop
RD - Remove Directory
RD - Request Disconnect
RD - Route Distinguisher
RDA - Remote Data Access
RDB - Relational DataBase
RDBMS - Relational DataBase Management System
RDBMS - Remote DataBase Management System
RDCS - Rapidly Deployable Conversion Suite
RDDL - Resource Directory Description Language
RDF - Resource Description Framework
RDI - Remote Defect Identification
RDK - Reference Design Kit
RDM - Remote Deployment Manager
RDM - Resource Description Messages
RDMA - Remote Direct Memory Access
RDMAP - Remote Direct Memory Access Protocol
RDMS - Relational Database Management System
RDN - Rational Developer Network
RDN - Relative Distinguished Name
RDNIS - Redirect Dial Number ID Service
RDO - Remote Data Object
RDP - Remote Data Protocol
RDP - Remote Debugging Protocol
RDP - Remote Desktop Protocol
RDRAM - Rambus® Dynamic Random Access Memory
RDS - Radio Digital System
RDS - Recovery Data Set
RDS - Relational Development Systems
RDS - Remote Development Service
RDS - Resolver Discovery Service
RDT - Remote Digital Terminal
RDU - Remote Disconnection Utility
REBOL - Relative Expression-Based Object Language
RED - Random Early Detection
RED - Random Early Discard
REM - Remote Enterprise Management
REM - Ring Error Monitor