R&D - Research and Development

R-DAT - Rotary Digital Audio Tapes

R/W - Read / Write

RAA - Random Access Algorithms

RAD - Rapid Application Development

RADIUS - Remote Authentication Dial-In User Service

RADSL - Rate Adaptive Digital Subscription Line

RAIC - Redundant Array of Inexpensive Computers

RAID - Redundant Array of Inexpensive Disk

RAM - Random Access Memory

RAM - Risk Assessment and Management

RAM - Responsibility Assignment Matrix

RAMDAC - Random Access Memory Digital-to-analog Converter

RAMM - Risk Analysis Management and Methodology

RAMP - Risk Assessment and Management Program

RAND - Random

RAP - Rapid Application Prototyping

RARP - Reverse Address Resolution Protocol

RARP - Raster Address Resolution Protocol

RAS - Raw Address Strob

RAS - Remote Access Server

RAS - Remote Access Service

RB - Recovery Block

RBCN - Rule - Based Connectionist Network

RBF - Roadval Basis Function