R&D - Research & Development (investigación y desarrollo).

RAD - Rapid Application Development (desarrollo rapido de aplicaciones).

RADIUS - Remote Authentication Dial In User Service.

RADSL - Rate-adative Asymetric Digital Suscriber Line.

RAID - Redundant Array of Independent Disks.

RAM - Random Acces Memory (memoria de acceso aleatorio).

RAMAC - Random Access Method of Accounting Control.

RAMDAC - Random Access Memory Digital to Analog Converter.

RARP - Reverse Address Resolution Protocol.

RDSI - Integrated Services Digital Network.

REXX - Restructured Extended Executor.

RFC - Request for Comments (petición de comentario).

RFi - Radio Fraquency Interference (interferencia de radiofrequencia).

RGB - Red Green Blue (rojo, verde y azul).

RiFF - Resource Interchange File Format.

RISC - Reduced Instruction set Computing.

RLSD - Received Line Signal Detect.

ROFL - Rolling on the Floor Launghing.

ROM - Read-Only Memory (memoria de solo lectura).

ROM BIOS - Read Only Memory Basic Input/Output System

RTFM - Read the Flaming Manual.

RTM - Read the Manual (lea el manual).

RTS - Request to Send.